JEFFERSON MATH PROJECT REGENTS BY CHAPTER

JEFFERSON MATH PROJECTREGENTS BY CHAPTER

842 NY Math Regents Exam QuestionsSorted by Prentice Hall Chapter

INTEGRATED ALGEBRA (2008 Edition)

www.jmap.org

Dear Sir

I have to acknolege the reciept of your favor of May 14. in which you mention that you have finished the 6.first books of Euclid, plane trigonometry, surveying & algebra and ask whether I think a further pursuit ofthat branch of science would be useful to you. there are some propositions in the latter books of Euclid, & someof Archimedes, which are useful, & I have no doubt you have been made acquainted with them. trigonometry,so far as this, is most valuable to every man, there is scarcely a day in which he will not resort to it for some ofthe purposes of common life. the science of calculation also is indispensible as far as the extraction of thesquare & cube roots; Algebra as far as the quadratic equation & the use of logarithms are often of value inordinary cases: but all beyond these is but a luxury; a delicious luxury indeed; but not to be indulged in byone who is to have a profession to follow for his subsistence. in this light I view the conic sections, curves of thehigher orders, perhaps even spherical trigonometry, Algebraical operations beyond the 2d dimension, andfluxions. Letter from Thomas Jefferson to William G. Munford, Monticello, June 18, 1799.

TABLE OF CONTENTS

PRENTICE HALL CHAPTER NUMBER OFQUESTIONS

CH1 Variables, Function Patterns, and Graphs 98

CH2 Rational Numbers 50

CH3 Solving Equations 135

CH4 Solving Inequalities 30

CH5 Graphs and Functions 35

CH6 Linear Equations and Their Graphs 47

CH7 System of Equations and Inequalities 48

CH8 Exponents and Exponential Functions 61

CH9 Polynomials and Factoring 30

CH10 Quadratic Equations and Functions 85

CH11 Radical Expressions and Equations 73

CH12 Rational Expressions and Functions 88

NYADDITIONAL

LESSONS

Quartiles and Box-and-Whisker PlotsSystems of Linear and Quadratic

Equations11

SKILLSHANDBOOK

Perimeter, Area, and VolumeTranslations, Reflections, Rotations

Circle Graphs51

842

Math Regents Exam Questions - Prentice Hall Integrated Algebra Page 1www.jmap.org

Chapter 1: Variables, Function Patterns, and Graphs

Lesson 1-1: Using Variables

Part 1: Modeling Relationships with Variables

1. Tara buys two items that cost d dollars each.She gives the cashier $20. Which expressionrepresents the change she should receive?

[1]

[A] 20 + 2d [B] 2d - 20

[C] 20 - 2d [D] 20 - d

2. The sum of Scott's age and Greg's age is 33years. If Greg's age is represented by g,Scott's age is represented by

[2]

[A] g + 33 [B] 33 - g

[C] g - 33 [D] 33g

3. Which expression represents "5 less than theproduct of 7 and x"?

[3]

[A] 7x - 5 [B] 7(x - 5)

[C] 5 - 7x [D] 7 + x - 5

4. If the number represented by n-3 is an oddinteger, which expression represents the nextgreater odd integer?

[4]

[A] n + 1 [B] n - 2 [C] n - 5 [D] n - 1

5. If n + 4 represents an odd integer, the nextlarger odd integer is represented by

[5]

[A] n + 5 [B] n + 3

[C] n + 6 [D] n + 2

6. Which expression represents the product oftwo consecutive odd integers, where n is anodd integer?

[6]

[A] 2n + 1 [B] n(n + 2)

[C] n(n + 3) [D] n(n + 1)

7. Ashanti and Maria went to the store to buysnacks for their back-to-school party. Theybought bags of chips, pretzels, and nachos.They bought three times as many bags ofpretzels as bags of chips, and two fewer bagsof nachos than bags of pretzels. If xrepresents the number of bags of chips theybought, express, in terms of x, how many bagsof snacks they bought in all.

[7]

8. A store advertises that during its Labor Daysale $15 will be deducted from everypurchase over $100. In addition, after thededuction is taken, the store offers an early-bird discount of 20% to any person whomakes a purchase before 10 a.m. If Hakeemmakes a purchase of x dollars, x>100, at 8a.m., what, in terms of x, is the cost ofHakeem's purchase?

[8]

[A] 0.80x - 12 [B] 0.85x - 20

[C] 0.20x - 3 [D] 0.20x - 15



Lesson 1-2: Exponents and Order ofOperations

Part 1: Simplifying and Evaluating Expressions andFormulas

9. If the expression 3 4 62

2− + is evaluated,

what would be done last?

[9]

[A] dividing [B] subtracting

[C] squaring [D] adding

10. If x = 4 and y = -2, the value of 12

2x y is

[10]

[A] 32 [B] 8 [C] -8 [D] -4

11. Brett was given the problem: "Evaluate2 52x + when x = 3." Brett wrote that theanswer was 41. Was Brett correct? Explainyour answer.

[11]

12. If x = -4 and y = 3, what is the value ofx y− 3 2 ?

[12]

[A] -13 [B] -23 [C] -85 [D] -31

13. If t = -3, then 3 5 62t t+ + equals

[13]

[A] -36 [B] 6 [C] -6 [D] 18

14. If a = 3 and b = -1, what is the value ofab b− 2 ?

[14]

[A] 4 [B] -2 [C] -4 [D] 2

15. If n represents an odd number, whichcomputation results in an answer that is aneven number?

[15]

[A] 2 1× +n [B] 2 1× −n[C] 3 1× +n [D] 3 2× −n

16. If a and b are both odd integers, whichexpression must always equal an odd integer?

[16]

[A] a b⋅ [B] ab

[C] a b+ [D] a b−

Part 2: Simplifying and Evaluating Expressions withGrouping Symbols

17. What is the first step in simplifying theexpression ( ) ?2 3 4 5 2− × +

[17]

[A] add 4 and 5 [B] subtract 3 from 2

[C] multiply 3 by 4 [D] square 5

18. The expression 15 - 3[2 + 6(-3)] simplifies to

[18]

[A] -33 [B] -45 [C] 63 [D] 192

19. What is the value of x y2 42− , if x = 4 and

y = −3?

[19]

[A] 2 [B] 14 [C] -2 [D] 10



20. If a is an odd number, b an even number, andc an odd number, which expression willalways be equivalent to an odd number?

[20]

[A] ac b( )1 [B] ac b( )0

[C] ac b( )2 [D] a bc( )

Lesson 1-3: Exploring Real Numbers

Part 1: Classifying Numbers

21. The number 0.14114111411114 . . . is

[21]

[A] integral [B] whole

[C] rational [D] irrational

22. Write an irrational number and explain why itis irrational.

[22]

23. Which number below is irrational?49

20 121, ,

Why is the number you chose an irrationalnumber?

[23]

24. Which number is irrational?

[24]

[A] 8 [B] 9 [C] 23

[D] 0.3333

25. Which expression represents an irrationalnumber?

[25]

[A] 0 [B] 2 [C] 0.17 [D] 12

26. Which is an irrational number?

[26]

[A] 34

[B] 3 [C] 3.14 [D] 9


[27]

[A] 9 [B] 0 [C] π [D] − 13


[28]

[A] π [B] 3.0 [C] 49 [D]83

29. Given: 9911

164 196, ,

Identify the expression that is a rationalnumber and explain why it is rational.

[29]

30. Which number is rational?

[30]

[A] 7 [B] π [C] 32

[D] 54

31. Which is a rational number?

[31]

[A] 5 9 [B] 8 [C] 6 2 [D] π

32. Which expression is rational?

[32]

[A] 12

[B] π [C] 3 [D] 14



Part 2: Comparing Numbers

33. Kyoko's mathematics teacher gave her theaccompanying cards and asked her to arrangethe cards in order from least to greatest. Inwhat order should Kyoko arrange the cards?

[33]

34. In which list are the numbers in order fromleast to greatest?

[34]

[A] 13, , 3.2, 33

π [B] 13.2, 3 , 3,3

π

[C] 13.2, , 3 , 33

π [D] 13, 3.2, , 33

π

35. Which numbers are arranged from smallest tolargest?

[35]

[A]722,,14.3,1.9 π

[B] π,722,14.3,1.9

[C]722,14.3,,1.9 π

[D] 1.9,,722,14.3 π

36. Which list is in order from smallest value tolargest value?

[36]

[A] 10 227

31, , , .π [B] 31 227

10. , , ,π

[C] 31 227

10. , , ,π [D] π , , . ,227

31 10

37. Which list shows the numbers

− 012 182

18

19

. , , , in order from smallest to

largest?

[37]

[A] 182

19

012 18

, , . ,−

[B] 182

012 19

18

, . , ,−

[C] 18

19

182

012, , , .−

[D] − 012 18

19

182

. , , ,

38. Which expression has the smallest value?

[38]

[A] − π [B] − 10

[C] − 165

[D] − 302.

39. Which number has the greatest value?

[39]

[A] π2

[B] 123

[C] 2 [D] 1.5



40. Which inequality is true if x = 304148..

, y =

1.99 + 0.33, and z = ( . ) ?13 3

[40]

[A] x < z < y [B] x < y < z

[C] y < z < x [D] y < x < z

41. If t t t2 < < , then t could be

[41]

[A] 4 [B] − 14

[C] 0 [D] 14

42. If x xx

3 1< < , then x could be equal to

[42]

[A] 5 [B] 65

[C] 1 [D] 15

43. Let x and y be numbers such that0 1< < <x y , and let d x y= − . Which graphcould represent the location of d on thenumber line?

[43]

[A]

[B]

[C]

[D]

44. If a b c d< <, , and a, b, c, and d are allgreater than 0, which expression is alwaystrue?

[44]

[A] ac < bd [B] a - c + b - d = 0

[C] ad

bc

> [D] a + c > b + d

45. The expression − − 7 is equivalent to

[45]

[A] 7 [B] 0 [C] 1 [D] -7

46. If r = 2 and s = -7, what is the value ofr s− ?

[46]

[A] -5 [B] -9 [C] 5 [D] 9

Review P. 24-25: Graphing on theCoordinate Plane

47. The coordinates of A are (-9, 2) and thecoordinates of G are (3, 14). What are thecoordinates of the midpoint of AG ?

[47]

[A] (-6,6) [B] (-6,16)

[C] (-3,8) [D] (-21,-10)

48. M is the midpoint of AB . If the coordinatesof A are (-1,5) and the coordinates of M are(3,3), what are the coordinates of B?

[48]

[A] (1,4) [B] (7,1)

[C] (2,8) [D] (-5,7)



49. The midpoint of AB is ( , )−1 5 and thecoordinates of point A are ( , ).−3 2 What arethe coordinates of point B?

[49]

[A] (1,10) [B] (0,7)

[C] (1,8) [D] (-5,8)

50. A line segment on the coordinate plane hasendpoints (2,4) and (4,y). The midpoint ofthe segment is point (3,7). What is the valueof y?

[50]

[A] 10 [B] -2 [C] 5 [D] 11

51. The coordinates of the midpoint of AB are(2,4), and the coordinates of point B are (3,7).What are the coordinates of point A? [Theuse of the accompanying grid is optional.]

[51]

52. The midpoint M of line segment AB hascoordinates (-3,4). If point A is the origin,(0,0), what are the coordinates of point B?[The use of the accompanying grid isoptional.]

[52]

Lesson 1-4: Patterns and Functions

Part 1: Writing a Function Rule

53. Which linear equation represents the data inthe accompanying table?

[53]

[A] d = 20.00c + 1.50 [B] d = 1.50c

[C] d = 21.50c [D] d = 1.50c + 20.00



54. If x and y are defined as indicated by theaccompanying table, which equation correctlyrepresents the relationship between x and y?

[54]

[A] y = 2x + 3 [B] y = x + 2

[C] y = 2x + 2 [D] y = 2x - 3

55. Which equation could represent therelationship between the x and y values shownin the accompanying table?

[55]

[A] y x= 2 [B] y x= +2 2

[C] y x= 2 [D] y x= + 2

Part 2: Relationships in a Function

56. If the value of dependent variable y increasesas the value of independent variable xincreases, the graph of this relationship couldbe a

[56]

[A] line with a negative slope

[B] line with a positive slope

[C] vertical line [D] horizontal line

Activity Lab P. 38-39: InterpretingGraphs

57. The accompanying diagram shows the resultsof a survey asking which sports the membersof the Key Club watch on television.

Which statement or statements are true?I The most watched sport is tennis.II The least watched sport is baseball.III More Key Club members watch tennisthan football.

[57]

[A] II and III, only [B] I and II, only

[C] I, only [D] II, only



58. The accompanying Venn diagram shows thenumber of students who take various courses.All students in circle A take mathematics. Allin circle B take science. All in circle C taketechnology. What percentage of the studentstake mathematics or technology?

[58]

59. The accompanying Venn diagram shows theresults of a survey asking 100 people if theyget news by reading newspapers or bywatching television.

What is the probability that a person selectedat random from this survey does not claimtelevision as a source of getting the news?

[59]

[A]10075 [B]

10035 [C]

10015 [D]

10055

60. In a class of 450 students, 300 are taking amathematics course and 260 are taking ascience course. If 140 of these students aretaking both courses, how many students arenot taking either of these courses?

[60]

[A] 140 [B] 110 [C] 30 [D] 40

61. In a class of 50 students, 18 take music, 26take art, and 2 take both art and music. Howmany students in the class are not enrolled ineither music or art?

[61]

[A] 6 [B] 24 [C] 16 [D] 8

62. The senior class at South High Schoolconsists of 250 students. Of these students,130 have brown hair, 160 have brown eyes,and 90 have both brown hair and brown eyes.How many members of the senior class haveneither brown hair nor brown eyes?

[62]

63. In a telephone survey of 100 households, 32households purchased Brand A cereal and 45purchased Brand B cereal. If 10 householdspurchased both items, how many of thehouseholds surveyed did not purchase eitherBrand A or Brand B cereal?

[63]

64. In a survey of 400 teenage shoppers at a largemall, 240 said they shopped at Abernathy's,210 said they shopped at Bongo Republic,and 90 said they shopped at both stores. Howmany of the teenage shoppers surveyed didnot shop at either store?

[64]



65. In Clark Middle School, there are 60 studentsin seventh grade. If 25 of these students takeart only, 18 take music only, and 9 do not takeeither art or music, how many take both artand music?

[65]

66. A car dealer has 22 vehicles on his lot. If 8 ofthe vehicles are vans and 6 of the vehicles arered, and 10 vehicles are neither vans nor red,how many red vans does he have on his lot?

[66]

67. A school district offers hockey andbasketball. The result of a survey of 300students showed:120 students play hockey, only 90 students play basketball, only 30 students do not participate in either sportOf those surveyed, how many students playboth hockey and basketball?

[67]

68. Seventy-eight students participate in one ormore of three sports: baseball, tennis, andgolf. Four students participate in all threesports; five play both baseball and golf, only;two play both tennis and golf, only; and threeplay both baseball and tennis, only. If sevenstudents play only tennis and one plays onlygolf, what is the total number of students whoplay only baseball?

[68]

[A] 60 [B] 44 [C] 56 [D] 12

69. There are 30 students on a school bus. Ofthese students, 24 either play in the schoolband or sing in the chorus. Six of the studentsplay in the school band but do not sing in thechorus. Fourteen of the students sing in thechorus and also play in the school band. Howmany students on the school bus sing in thechorus but do not play in the band?

[69]

70. Jose surveyed 20 of his friends to find outwhat equipment they use to play recordedmovies. He found that 12 of his friends haveonly DVD players, 5 have both DVD playersand VCRs, and 2 have neither type of player.The rest of his friends have only VCRs. Whatis the total number of his friends that haveVCRs?

[70]

71. In Ms. Wright's English class, 16 students arein band, 7 students play sports, 3 studentsparticipate in both activities, and 9 studentsare not in band and do not play sports. Howmany students are in Ms. Wright's Englishclass?

[71]

[A] 7 [B] 10 [C] 26 [D] 29



Lesson 1-6: Mean, Median, Mode, andRange

Part 1: Finding Mean, Median, and Mode

72. Rosario and Enrique are in the samemathematics class. On the first five tests,Rosario received scores of 78, 77, 64, 86, and70. Enrique received scores of 90, 61, 79, 73,and 87. How much higher was Enrique'saverage than Rosario's average?

[72]

[A] 15 points [B] 3 points

[C] 2 points [D] 4 points

73. On an English examination, two studentsreceived scores of 90, five students received85, seven students received 75, and onestudent received 55. The average score onthis examination was

[73]

[A] 77 [B] 79 [C] 76 [D] 75

74. Seth bought a used car that had been driven20,000 miles. After he owned the car for 2years, the total mileage of the car was 49,400.Find the average number of miles he droveeach month during those 2 years.

[74]

75. What was the median high temperature inMiddletown during the 7-day period shown inthe table below?

[75]

[A] 73 [B] 70 [C] 69 [D] 75

76. Sara's test scores in mathematics were 64, 80,88, 78, 60, 92, 84, 76, 86, 78, 72, and 90.Determine the mean, the median, and themode of Sara's test scores.

[76]



77. The accompanying graph shows the hightemperatures in Elmira, New York, for a 5-day period in January.

Which statement describes the data?

[77]

[A] median = mode [B] mean = mode

[C] median = mean [D] mean < mode

78. From January 3 to January 7, Buffalorecorded the following daily hightemperatures: 5°, 7°, 6°, 5°, and 7°. Whichstatement about the temperatures is true?

[78]

[A] mean < median [B] mean = median

[C] mean = mode [D] median = mode

79. The ages of five children in a family are 3, 3,5, 8, and 18. Which statement is true for thisgroup of data?

[79]

[A] median > mean [B] median = mode

[C] mean > median [D] mode > mean

80. Melissa's test scores are 75, 83, and 75.Which statement is true about this set of data?

[80]

[A] mean < mode [B] mean = median

[C] mode < median [D] mode = median

81. What is the mean of the data in theaccompanying table?

[81]

[A] 16 [B] 15 [C] 14.5 [D] 11

82. The weights of all the students in grade 9 arearranged from least to greatest. Whichstatistical measure separates the top half ofthis set of data from the bottom half?

[82]

[A] median [B] mean

[C] average [D] mode

83. Two social studies classes took the samecurrent events examination that was scored onthe basis of 100 points. Mr. Wong's class hada median score of 78 and a range of 4 points,while Ms. Rizzo's class had a median score of78 and a range of 22 points. Explain howthese classes could have the same medianscore while having very different ranges.

[83]



84. The mean (average) weight of three dogs is38 pounds. One of the dogs, Sparky, weighs46 pounds. The other two dogs, Eddie andSandy, have the same weight. Find Eddie'sweight.

[84]

85. If 6 and x have the same mean (average) as 2,4, and 24, what is the value of x?

[85]

[A] 14 [B] 36 [C] 10 [D] 5

86. TOP Electronics is a small business with fiveemployees. The mean (average) weeklysalary for the five employees is $360. If theweekly salaries of four of the employees are$340, $340, $345, and $425, what is thesalary of the fifth employee?

[86]

87. During each marking period, there are fivetests. If Vanita needs a 65 average to passthis marking period and her first four gradesare 60, 72, 55, and 80, what is the lowestscore she can earn on the last test to have apassing average?

[87]

[A] 100 [B] 80 [C] 58 [D] 65

88. The exact average of a set of six test scores is92. Five of these scores are 90, 98, 96, 94,and 85. What is the other test score?

[88]

[A] 86 [B] 89 [C] 91 [D] 92

89. The students in Woodland High School'smeteorology class measured the noontemperature every schoolday for a week.Their readings for the first 4 days wereMonday, 56°; Tuesday, 72°; Wednesday, 67°;and Thursday, 61°. If the mean (average)temperature for the 5 days was exactly 63°,what was the temperature on Friday?

[89]

90. For five algebra examinations, Maria has anaverage of 88. What must she score on thesixth test to bring her average up to exactly90?

[90]

[A] 92 [B] 100 [C] 94 [D] 98

91. Judy needs a mean (average) score of 86 onfour tests to earn a midterm grade of B. If themean of her scores for the first three tests was83, what is the lowest score on a 100-pointscale that she can receive on the fourth test tohave a midterm grade of B?

[91]

92. In his first three years coaching baseball atHigh Ridge High School, Coach Batty's teamwon 7 games the first year, 16 games thesecond year, and 4 games the third year. Howmany games does the team need to win in thefourth year so that the coach's average will be10 wins per year?

[92]

[A] 10 [B] 9 [C] 13 [D] 3



93. On the first six tests in her social studiescourse, Jerelyn's scores were 92, 78, 86, 92,95, and 91. Determine the median and themode of her scores. If Jerelyn took a seventhtest and raised the mean of her scores exactly1 point, what was her score on the seventhtest?

[93]

94. Tamika could not remember her scores fromfive mathematics tests. She did rememberthat the mean (average) was exactly 80, themedian was 81, and the mode was 88. If allher scores were integers with 100 the highestscore possible and 0 the lowest score possible,what was the lowest score she could havereceived on any one test?

[94]

95. Angelo, Brandon, and Carl work in the sameoffice. Angelo's age is 4 years more thantwice Carl's age. Brandon is 5 years youngerthan Carl. The average of the three ages is41. Find the age of each of the men.

[95]

Part 2: Stem-and-Leaf Plots

96. The student scores on Mrs. Frederick’smathematics test are shown on the stem-and-leaf plot below.

Find the median of these scores.

[96]

97. Jorge made the accompanying stem-and-leafplot of the weights, in pounds, of eachmember of the wrestling team he wascoaching.

What is the mode of the weights?

[97]

[A] 150 [B] 145 [C] 152 [D] 168



98. Construct a stem-and-leaf plot listing thescores below in order from lowest to highest.15, 25, 28, 32, 39, 40, 43, 26, 50, 75, 65, 19,55, 72, 50

[98]


Chapter 2: Rational Numbers

Lesson 2-2: Subtracting Real Numbers

Part 2: Applying Subtraction

1. On February 18, from 9 a.m. until 2 p.m., thetemperature rose from − °14 F to 36° F.What was the total increase in temperatureduring this time period?

[1]

[A] 50° [B] 32° [C] 22° [D] 36°

Lesson 2-4: The Distributive Property

Part 2: Simplifying Algebraic Expressions

2. The expression 56 4x x+ is equivalent to

[2]

[A] 524

x [B] 510

2x [C] 1312

x [D] 35x

3. The expression 2 2 2x x− is equivalent to

[3]

[A] 2 [B] x2 [C] − 2 4x [D] x0

Lesson 2-5: Properties of Numbers

Part 1: Identifying and Using Properties

4. If a and b are integers, which equation isalways true?

[4]

[A] a b b a+ = + [B] ab

ba

=

[C] a b b a+ = +2 2 [D] a b b a− = −

5. If M and A represent integers,M A A M+ = + is an example of which

property?

[5]

[A] associative [B] distributive

[C] commutative [D] closure

6. Which expression is an example of theassociative property?

[6]

[A] ( ) ( )x y z x y z+ + = + +

[B] x y z z y x+ + = + +

[C] x x⋅ =1 [D] x y z xy xz( )+ = +

7. Which equation illustrates the associativeproperty of addition?

[7]

[A] 3(x + 2) = 3x + 6

[B] x + y = y + x

[C] (3 + x) + y = 3 + (x + y)

[D] 3 + x = 0

8. The equation ∗ + ◊ =∗ + ∗◊( )Δ Δ is anexample of the

[8]

[A] associative law [B] distributive law

[C] commutative law [D] transitive law

9. Which equation illustrates the distributiveproperty?

[9]

[A] 5(a + b) = 5a + 5b [B] a + 0 = a

[C] a + (b + c) = (a + b) + c

[D] a + b = b + a



10. Which equation illustrates the distributiveproperty for real numbers?

[10]

[A] 3 0 3+ =

[B] -3(5 + 7) = (-3)(5) + (-3)(7)

[C] (1.3 0.07) 0.63=1.3 (0.07 0.63)× × × ×

[D] 1 1 1 13 2 2 3

+ = +

11. Tori computes the value of 8 95× in her headby thinking 8 100 5 8 100 8 5( ) .− = × − ×Which number property is she using?

[11]

[A] closure [B] associative

[C] distributive [D] commutative

12. While solving the equation 4 2 28( ) ,x + =Becca wrote 4 8 28x + = . Which property didshe use?

[12]

[A] distributive [B] identity

[C] associative [D] commutative

13. Which property is illustrated by the equation32

0 32

x x+ = ?

[13]

[A] distributive property

[B] additive inverse property

[C] commutative property of addition

[D] additive identity property

14. Which equation is an illustration of theadditive identity property?

[14]

[A] x x+ =0 [B] x x− = 0

[C] xx

⋅ =1 1 [D] x x⋅ =1

15. Which statement best illustrates the additiveidentity property?

[15]

[A] 6 + 2 = 2 + 6 [B] 6 + 0 = 6

[C] 6 + (-6) = 0 [D] 6(2) = 2(6)

16. Which equation illustrates the multiplicativeidentity element?

[16]

[A] xx

⋅ =1 1 [B] x x⋅ =1

[C] x x+ =0 [D] x x− = 0

17. Which expression must be added to 3x - 7 toequal 0?

[17]

[A] -3x + 7 [B] -3x - 7

[C] 0 [D] 3x + 7

18. What is the additive inverse of 23

?

[18]

[A] − 23

[B] 32

[C] − 32

[D] 13



19. Which property of real numbers is illustratedby the equation − + =3 3 0

[19]

[A] additive identity

[B] commutative property of addition

[C] associative property of addition

[D] additive inverse

20. If a ≠ 0 and the sum of x and 1a

is 0, then

[20]

[A] x = 1 - a [B] x = − 1a

[C] x = -a [D] x = a

21. What is the multiplicative inverse of 34

?

[21]

[A] − 43

[B] -1 [C] 43

[D] − 34

22. The multiplicative inverse of − 13

is

[22]

[A] 13

[B] -3 [C] 3 [D] − 13

23. Which equation illustrates the multiplicativeinverse property?

[23]

[A] xx −=⋅−1 [B] 001 =⋅

[C] xx =⋅1 [D] 11 =⋅x

x

24. Ramón said that the set of integers is notclosed for one of the basic operations(addition, subtraction, multiplication, ordivision). You want to show Ramón that hisstatement is correct.For the operation for which the set of integersis not closed, write an example using:o a positive even integer and a zeroo a positive and a negative even integero two negative even integersBe sure to explain why each of your examplesillustrates that the set of integers is not closedfor that operation.

[24]

25. Which set is closed under division?

[25]

[A] integers [B] {1}

[C] whole numbers [D] counting numbers

26. An addition table for a subset of real numbersis shown below. Which number is the identityelement? Explain your answer.

[26]



27. The operation element @ is determined by thefollowing table:

What is the identity element of this operation?

[27]

[A] b, only [B] a, only

[C] a and b [D] c

28. What is the identity element for in theaccompanying table?

[28]

[A] u [B] s [C] t [D] r

29. In the addition table for a subset of realnumbers shown below, which number is theinverse of 3? Explain your answer.

[29]

30. The operation * for the set {p,r,s,v} isdefined in the accompanying table. What isthe inverse element of r under the operation*?

[30]

[A] r [B] p [C] s [D] v

Lesson 2-6: Theoretical andExperimental Probability

Part 1: Theoretical Probability

31. Which inequality represents the probability, x,of any event happening?

[31]

[A] x ≥ 0 [B] 0 1≤ ≤x[C] x < 1 [D] 0 1< <x

32. A fair coin is thrown in the air four times. Ifthe coin lands with the head up on the firstthree tosses, what is the probability that thecoin will land with the head up on the fourthtoss?

[32]

[A] 0 [B] 12

[C] 116

[D] 18



33. A fair coin is tossed three times. What is theprobability that the coin will land tails up onthe second toss?

[33]

[A] 23

[B] 12

[C] 13

[D] 34

34. When a fair coin was tossed ten times, itlanded heads up the first seven times. What isthe probability that on the eighth toss the coinwill land with tails up?

[34]

[A] 12

[B] 37

[C] 710

[D] 310

35. Seth tossed a fair coin five times and got fiveheads. The probability that the next toss willbe a tail is

[35]

[A] 56

[B] 16

[C] 12

[D] 0

36. Mary chooses an integer at random from 1 to6. What is the probability that the integer shechooses is a prime number?

[36]

[A] 46

[B] 56

[C] 36

[D] 26

37. A box contains six black balls and four whiteballs. What is the probability of selecting ablack ball at random from the box?

[37]

[A] 610

[B] 110

[C] 46

[D] 64

38. A six-sided number cube has faces with thenumbers 1 through 6 marked on it. What isthe probability that a number less than 3 willoccur on one toss of the number cube?

[38]

[A] 46

[B] 36

[C] 26

[D] 16

39. The faces of a cube are numbered from 1 to 6.What is the probability of not rolling a 5 on asingle toss of this cube?

[39]

[A] 45

[B] 15

[C] 56

[D] 16

40. If the probability that it will rain on Thursday

is 56

, what is the probability that it will not

rain on Thursday?

[40]

[A] 0 [B] 16

[C] 1 [D] 56



41. The party registration of the voters inJonesville is shown in the table below.

If one of the registered Jonesville voters isselected at random, what is the probabilitythat the person selected is not a Democrat?

[41]

[A] 0.400 [B] 0.667

[C] 0.600 [D] 0.333

42. If Laquisha can enter school by any one ofthree doors and the school has two staircasesto the second floor, in how many differentways can Laquisha reach a room on thesecond floor? Justify your answer by drawinga tree diagram or listing a sample space.

[42]

43. The Grimaldis have three children born indifferent years.a Draw a tree diagram or list a sample spaceto show all the possible arrangements of boyand girl children in the Grimaldi family.b Using your information from part a, what isthe probability that the Grimaldis have threeboys?

[43]

44. Kimberly has three pair of pants: one black,one red, and one tan. She also has four shirts:one pink, one white, one yellow, and onegreen.Draw a tree diagram or list the sample spaceshowing all possible outfits that she couldwear, if an outfit consists of one pair of pantsand one shirt.How many different outfits can Kimberlywear?

[44]

Lesson 2-7: Probability of CompoundEvents

Part 1: Finding the Probability of Independent Events

45. Selena and Tracey play on a softball team.Selena has 8 hits out of 20 times at bat, andTracey has 6 hits out of 16 times at bat.Based on their past performance, what is theprobability that both girls will get a hit nexttime at bat?

[45]

[A] 3140

[B] 48320

[C] 1 [D] 1436

46. The probability that the Cubs win their first

game is 13

. The probability that the Cubs win

their second game is 37

. What is the

probability that the Cubs win both games?

[46]

[A] 25

[B] 17

[C] 67

[D] 1621



Part 2: Finding the Probability of Dependent Events

47. Bob and Laquisha have volunteered to serveon the Junior Prom Committee. The names oftwenty volunteers, including Bob andLaquisha, are put into a bowl. If two namesare randomly drawn from the bowl withoutreplacement, what is the probability thatBob's name will be drawn first and Laquisha'sname will be drawn second?

[47]

[A] 120

119

⋅ [B] 120

120

⋅

[C] 220!

[D] 220

48. A student council has seven officers, of whichfive are girls and two are boys. If twoofficers are chosen at random to attend ameeting with the principal, what is theprobability that the first officer chosen is agirl and the second is a boy?

[48]

[A] 1042

[B] 713

[C] 27

[D] 714

49. There are four students, all of differentheights, who are to be randomly arranged in aline. What is the probability that the talleststudent will be first in line and the shorteststudent will be last in line?

[49]

50. Mr. Yee has 10 boys and 15 girls in hismathematics class. If he chooses two studentsat random to work on the blackboard, what isthe probability that both students chosen aregirls?

[50]


Chapter 3: Solving Equations

Lesson 3-1: Solving Two-StepEquations

Part 1: Solving Two-Step Equations

1. Solve for x: 116

14

12

x + =

[1]

2. If 2x + 5 = -25 and -3m - 6 = 48, what is theproduct of x and m?

[2]

[A] 270 [B] 3 [C] -270 [D] -33

3. If − + =2 3 7x and 3 1 5x y+ = + , the value ofy is

[3]

[A] 0 [B] 10 [C] 1 [D] −10

4. How many times larger than 14

x is 5x ?

[4]

[A] 54

[B] 20 [C] 45

[D] 9

5. At the beginning of her mathematics class,Mrs. Reno gives a warm-up problem. Shesays, "I am thinking of a number such that 6less than the product of 7 and this number is85." Which number is she thinking of?

[5]

[A] 637 [B] 13 [C] 84 [D] 1127

6. Every month, Omar buys pizzas to serve at aparty for his friends. In May, he bought threemore than twice the number of pizzas hebought in April. If Omar bought 15 pizzas inMay, how many pizzas did he buy in April?

[6]

7. Mr. Perez owns a sneaker store. He bought350 pairs of basketball sneakers and 150 pairsof soccer sneakers from the manufacturers for$62,500. He sold all the sneakers and made a25% profit. If he sold the soccer sneakers for$130 per pair, how much did he charge forone pair of basketball sneakers?

[7]

Lesson 3-2: Solving Multi-StepEquations

Part 1: Using the Distributive Property to CombineLike Terms

8. What is the solution of the equation3 5 10 36y y− + = ?

[8]

[A] -13 [B] 2 [C] 4.5 [D] 13

9. Sara's telephone service costs $21 per monthplus $0.25 for each local call, and long-distance calls are extra. Last month, Sara'sbill was $36.64, and it included $6.14 in long-distance charges. How many local calls didshe make?

[9]



10. What is the value of x in the equationx x2 6

2+ = ?

[10]

[A] 3 [B] 14

[C] 8 [D] 12

11. What is the solution set of the equationx x5 2

14+ = ?

[11]

[A] {10} [B] {4} [C] {20} [D] {49}

Part 2: Using the Distributive Property to SolveEquations

12. Solve for x: 15 3 3 4 6x x− + =( )

[12]

[A] 13

[B] − 12

[C] 1 [D] 3

13. What is the value of n in the equation0 6 10 36. ( ) . ?n + =

[13]

[A] 5 [B] -4 [C] -0.4 [D] 4

14. What is the value of p in the equation2 3 4 10( ) ?p − =

[14]

[A] 13

[B] 2 13

[C] 3 [D] 1

15. Parking charges at Superior Parking Garageare $5.00 for the first hour and $1.50 for eachadditional 30 minutes. If Margo has $12.50,what is the maximum amount of time she willbe able to park her car at the garage?

[15]

[A] 2 12

hours [B] 6 12

hours

[C] 3 12

hours [D] 6 hours

16. Mario paid $44.25 in taxi fare from the hotelto the airport. The cab charged $2.25 for thefirst mile plus $3.50 for each additional mile.How many miles was it from the hotel to theairport?

[16]

[A] 12 [B] 13 [C] 11 [D] 10

17. A candy store sells 8-pound bags of mixedhazelnuts and cashews. If c pounds ofcashews are in a bag, the price p of the bagcan be found using the formulap c c= + −2 59 172 8. . ( ). If one bag is priced at

$18.11, how many pounds of cashews does itcontain?

[17]

Lesson 3-3: Equations with Variableson Both Sides

Part 1: Solving Equations with Variables on BothSides

18. What is the value of n in the equation3 8 32n n− = − ?

[18]

[A] 6 [B] -10 [C] -6 [D] 10



19. Solve for m: 0.6m + 3 = 2m + 0.2

[19]

20. Solve for x: 2(x - 3) = 1.2 - x

[20]

21. If 3(x - 2) = 2x + 6, the value of x is

[21]

[A] 0 [B] 5 [C] 12 [D] 20

22. If 2(x + 3) = x + 10, then x equals

[22]

[A] 14 [B] 4 [C] 5 [D] 7

23. What is the value of x in the equation13 2 4 8 1x x x− + = +( ) ?

[23]

[A] 1 [B] 4 [C] 2 [D] 3

24. Solve for x: 3.3 - x = 3(x - 1.7)

[24]

25. What is the value of x in the equation5 2 7 15 10( ) ?x x− = −

[25]

[A] -5 [B] 0.6 [C] 1 [D] -9

26. What is the value of x in the equation6 2 36 10( ) ?x x− = −

[26]

[A] 3 [B] -6 [C] 6 [D] 1.5

27. What is the value of w in the equation12

7 2 2w w+ = − ?

[27]

[A] 3 13

[B] 2 [C] 3.6 [D] 6

28. What is the value of w in the equation34

8 13

7w w+ = − ?

[28]

[A] -36 [B] -13.846 [C] -0.2 [D] 2.4

29. What is the value of x in the equation34

2 54

6x x+ = − ?

[29]

[A] 16 [B] 4 [C] -4 [D] -16

30. If x + y = 9x + y, then x is equal to

[30]

[A] 15

y [B] 8 [C] 0 [D] y

31. If 9x + 2a = 3a - 4x, then x equals

[31]

[A] a [B] 512a [C] − a [D] a

13

32. If 7 2 3 5x a x a+ = + , then x is equivalent to

[32]

[A] 710

a [B] 74a [C] 3

4a [D] 3

10a



33. If one-half of a number is 8 less than two-thirds of the number, what is the number?

[33]

[A] 32 [B] 54 [C] 48 [D] 24

34. The number of people on the school board isrepresented by x. Two subcommittees withan equal number of members are formed, one

with 23

5x − members and the other with x4

members. How many people are on theschool board?

[34]

[A] 12 [B] 20 [C] 8 [D] 4

Review P. 140-141: Using andTransforming Formulas

35. If 2m + 2p = 16, p equals

[35]

[A] 8 - m [B] 16 - m

[C] 16 + 2m [D] 9m

36. If bx K− =2 , then x equals

[36]

[A] 2 − Kb

[B] Kb− 2

[C] Kb

+ 2 [D] Kb+ 2

37. If c m d= +2 , then m is equal to

[37]

[A] c d−2

[B] c d2

−

[C] c d−2

[D] d c− 2

38. If x a b= −2 2 , then a equals

[38]

[A] b x2

2− [B] x b− 2

2

[C] x b+ 2

2[D] x b+ 2

39. If 2ax - 5x = 2, then x is equivalent to

[39]

[A] 2 52+ aa

[B] 7 2− a

[C] 15a −

[D] 22 5a −

40. If x ab

b4

0 0− = ≠, , then x is equal to

[40]

[A]b

a4

− [B]ba4 [C]

ba4

[D]ba4−

41. The equation P = 2L + 2W is equivalent to

[41]

[A] L P W= + 22

[B] L P W= −

[C] L P W= − 22

[D] 22

L PW

=

42. In the equation A p prt= + , t is equivalent to

[42]

[A] A prp

− [B] A ppr−

[C] Apr

p− [D] AP

pr−



43. The formula for the volume of a right circularcylinder is V r h= π 2 . The value of h can beexpressed as

[43]

[A] π rV

2

[B] V r− π 2

[C] V rπ

2 [D] Vrπ 2

44. The formula for potential energy is P mgh= ,where P is potential energy, m is mass, g isgravity, and h is height. Which expressioncan be used to represent g?

[44]

[A] P mh− [B] P m h− −

[C] Pmh

[D] Pm

h−

45. Shoe sizes and foot length are related by theformula S = 3F - 24, where S represents theshoe size and F represents the length of thefoot, in inches.a Solve the formula for F.b To the nearest tenth of an inch, how long

is the foot of a person who wears a size 10 12

shoe?

[45]

46. If x a b x a− = >, , which expression isequivalent to x?

[46]

[A] b a2 − [B] b a−

[C] b a+ [D] b a2 +

47. The volume of any spherical balloon can be

found by using the formula V r= 43

3π .

Write an equation for r in terms of V and π .

[47]

48. If the temperature in Buffalo is 23°Fahrenheit, what is the temperature in degrees

Celsius? [Use the formula C F= −59

32( ).]

[48]

[A] -5 [B] 45 [C] 5 [D] -45

49. The formula C F= −59

32( ) can be used to

find the Celsius temperature (C) for a givenFahrenheit temperature (F). What Celsiustemperature is equal to a Fahrenheittemperature of 77°?

[49]

[A] 171° [B] 8° [C] 45° [D] 25°

50. The formula for changing Celsius (C)temperature to Fahrenheit (F) temperature is

F C= +95

32 . Calculate, to the nearest

degree, the Fahrenheit temperature when theCelsius temperature is -8.

[50]

51. The formula C F= −59

32( ) is used to

convert Fahrenheit temperature, F, to Celsiustemperature, C. What temperature, in degreesFahrenheit, is equivalent to a temperature of10° Celsius?

[51]



52. Connor wants to compare Celsius andFahrenheit temperatures by drawing aconversion graph. He knows that− ° = − °40 40C F and that 20 68° = °C F. Onthe accompanying grid, construct theconversion graph and, using the graph,determine the Celsius equivalent of 25°F.

[52]

Lesson 3-4: Ratio and Proportion

Part 1: Ratios and Rates

53. A hockey team played n games, losing four ofthem and winning the rest. The ratio ofgames won to games lost is

[53]

[A] n − 44

[B] 4n

[C] 44n −

[D] n4

54. If the instructions for cooking a turkey state"Roast turkey at 325° for 20 minutes perpound," how many hours will it take to roast a20-pound turkey at 325°?

[54]

55. In a molecule of water, there are two atoms ofhydrogen and one atom of oxygen. Howmany atoms of hydrogen are in 28 moleculesof water?

[55]

[A] 56 [B] 42 [C] 14 [D] 29

56. A cake recipe calls for 1.5 cups of milk and 3cups of flour. Seth made a mistake and used5 cups of flour. How many cups of milkshould he use to keep the proportions correct?

[56]

[A] 2.25 [B] 2.5 [C] 1.75 [D] 2

57. A total of $450 is divided into equal shares.If Kate receives four shares, Kevin receivesthree shares, and Anna receives the remainingtwo shares, how much money did Kevinreceive?

[57]

[A] $100 [B] $150

[C] $200 [D] $250

58. During a recent winter, the ratio of deer tofoxes was 7 to 3 in one county of New YorkState. If there were 210 foxes in the county,what was the number of deer in the county?

[58]

[A] 90 [B] 147 [C] 280 [D] 490

59. Sterling silver is made of an alloy of silverand copper in the ratio of 37:3. If the massof a sterling silver ingot is 600 grams, howmuch silver does it contain?

[59]

[A] 48.65 g [B] 450 g

[C] 555 g [D] 200 g



60. There are 357 seniors in Harris High School.The ratio of boys to girls is 7:10. How manyboys are in the senior class?

[60]

[A] 107 [B] 147 [C] 210 [D] 117

61. The profits in a business are to be shared bythe three partners in the ratio of 3 to 2 to 5.The profit for the year was $176,500.Determine the number of dollars each partneris to receive.

[61]

62. At the Phoenix Surfboard Company,$306,000 in profits was made last year. Thisprofit was shared by the four partners in theratio 3:3:5:7. How much more money did thepartner with the largest share make than oneof the partners with the smallest share?

[62]

63. Which expression represents the number ofyards in x feet?

[63]

[A] 3x [B] 12x [C] x3

[D] x12

64. If rain is falling at the rate of 2 inches perhour, how many inches of rain will fall in xminutes?

[64]

[A] 2x [B] 60x

[C] x30

[D] 30x

65. Andy is 6 feet tall. If 1 inch equals 2.54centimeters, how tall is Andy, to the nearestcentimeter?

[65]

[A] 15 [B] 30 [C] 183 [D] 213

66. If a United States dollar is worth $1.41 inCanadian money, how much is $100 inCanadian money worth in United Statesmoney, to the nearest cent?

[66]

67. A car travels 110 miles in 2 hours. At thesame rate of speed, how far will the car travelin h hours?

[67]

[A] h220

[B] 220h [C] 55h [D] h55

68. A rocket car on the Bonneville Salt Flats istraveling at a rate of 640 miles per hour. Howmuch time would it take for the car to travel384 miles at this rate?

[68]

[A] 1.7 hours [B] 36 minutes

[C] 256 minutes [D] 245 minutes

69. Running at a constant speed, Andrea covers

15 miles in 2 12

hours. At this speed, how

many minutes will it take her to run 2 miles?

[69]



70. During a 45-minute lunch period, Albert (A)went running and Bill (B) walked forexercise. Their times and distances are shownin the accompanying graph. How much fasterwas Albert running than Bill was walking, inmiles per hour?

[70]

71. On her first trip, Sari biked 24 miles in Thours. The following week Sari biked 32miles in T hours. Determine the ratio of heraverage speed on her second trip to heraverage speed on her first trip.

[71]

[A] 34

[B] 23

[C] 32

[D] 43

72. On a trip, a student drove 40 miles per hourfor 2 hours and then drove 30 miles per hourfor 3 hours. What is the student's average rateof speed, in miles per hour, for the wholetrip?

[72]

[A] 36 [B] 37 [C] 34 [D] 35

73. If Jamar can run 35

of a mile in 2 minutes 30

seconds, what is his rate in miles per minute?

[73]

[A] 45

[B] 625

[C] 3 110

[D] 4 16

Lesson 3-5: Proportions and SimilarFigures

Part 1: Similar Figures

74. The accompanying diagram shows twosimilar triangles.

Which proportion could be used to solve forx?

[74]

[A] 3212

15=x

[B] 32 1215x

=

[C] x24

915

= [D] 249

15=x

75. A triangle has sides whose lengths are 5, 12,and 13. A similar triangle could have sideswith lengths of

[75]

[A] 6, 8, and 10 [B] 7, 24, and 25

[C] 10, 24, and 26 [D] 3, 4, and 15



76. The Rivera family bought a new tent forcamping. Their old tent had equal sides of 10feet and a floor width of 15 feet, as shown inthe accompanying diagram.

If the new tent is similar in shape to the oldtent and has equal sides of 16 feet, how wideis the floor of the new tent?

[76]

77. Fran's favorite photograph has a length of 6inches and a width of 4 inches. She wants tohave it made into a poster with dimensionsthat are similar to those of the photograph.She determined that the poster should have alength of 24 inches. How many inches widewill the poster be?

[77]

78. The accompanying diagram shows a sectionof the city of Tacoma. High Road, StateStreet, and Main Street are parallel and 5miles apart. Ridge Road is perpendicular tothe three parallel streets. The distancebetween the intersection of Ridge Road andState Street and where the railroad trackscross State Street is 12 miles. What is thedistance between the intersection of RidgeRoad and Main Street and where the railroadtracks cross Main Street?

[78]

Part 2: Indirect Measurement and Scale Drawings

79. On a map, 1 centimeter represents 40kilometers. How many kilometers arerepresented by 8 centimeters?

[79]

[A] 280 [B] 5 [C] 320 [D] 48



80. Jordan and Missy are standing together in theschoolyard. Jordan, who is 6 feet tall, casts ashadow that is 54 inches long. At the sametime, Missy casts a shadow that is 45 incheslong. How tall is Missy?

[80]

[A] 86.4 in [B] 5 ft

[C] 38 in [D] 5 ft 6 in

81. An image of a building in a photograph is 6centimeters wide and 11 centimeters tall. Ifthe image is similar to the actual building andthe actual building is 174 meters wide, howtall is the actual building, in meters?

[81]

82. If a girl 1.2 meters tall casts a shadow 2meters long, how many meters tall is a treethat casts a shadow 75 meters long at thesame time?

[82]

83. A 12-foot tree casts a 16-foot shadow. Howmany feet tall is a nearby tree that casts a 20-foot shadow at the same time?

[83]

Activity Lab P. 156-157: Scale Factor:Perimeter, Area, and Volume

84. The perimeter of ΔA B C' ' ' , the image ofΔABC , is twice as large as the perimeter ofΔABC . What type of transformation hastaken place?

[84]

[A] rotation [B] translation

[C] reflection [D] dilation

85. Delroy's sailboat has two sails that are similartriangles. The larger sail has sides of 10 feet,24 feet, and 26 feet. If the shortest side of thesmaller sail measures 6 feet, what is theperimeter of the smaller sail?

[85]

[A] 15 ft [B] 100 ft

[C] 36 ft [D] 60 ft

86. Two triangles are similar. The lengths of thesides of the smaller triangle are 3, 5, and 6,and the length of the longest side of the largertriangle is 18. What is the perimeter of thelarger triangle?

[86]

[A] 18 [B] 14 [C] 24 [D] 42

87. The base of an isosceles triangle is 5 and itsperimeter is 11. The base of a similarisosceles triangle is 10. What is the perimeterof the larger triangle?

[87]

[A] 22 [B] 15 [C] 110 [D] 21

88. On a scale drawing of a new schoolplayground, a triangular area has sides withlengths of 8 centimeters, 15 centimeters, and17 centimeters. If the triangular area locatedon the playground has a perimeter of 120meters, what is the length of its longest side?

[88]

[A] 45 m [B] 40 m

[C] 24 m [D] 51 m



89. In the accompanying diagram of equilateraltriangle ABC, DE = 5 and DE AB .

If AB is three times as long as DE, what is theperimeter of quadrilateral ABED?

[89]

[A] 40 [B] 35 [C] 30 [D] 20

90. The lengths of the sides of two similarrectangular billboards are in the ratio 5:4. If250 square feet of material is needed to coverthe larger billboard, how much material, insquare feet, is needed to cover the smallerbillboard?

[90]

91. The ratio of the corresponding sides of twosimilar squares is 1 to 3. What is the ratio ofthe area of the smaller square to the area ofthe larger square ?

[91]

[A] 13: [B] 16: [C] 1 3: [D] 19:

92. The perimeter of an equilateral triangle variesdirectly as the length of a side. When thelength of a side is doubled, the perimeter ofthe triangle is

[92]

[A] halved [B] divided by 3

[C] multiplied by 3 [D] doubled

93. If the circumference of a circle is doubled, thediameter of the circle

[93]

[A] increases by 2 [B] is doubled

[C] remains the same

[D] is multiplied by 4

Lesson 3-6: Equations and ProblemSolving

Part 1: Defining Variables

94. The sum of the ages of the three Romanobrothers is 63. If their ages can berepresented as consecutive integers, what isthe age of the middle brother?

[94]

Part 2: Distance-Rate-Time Problems

95. A truck traveling at a constant rate of 45miles per hour leaves Albany. One hour latera car traveling at a constant rate of 60 milesper hour also leaves Albany traveling in thesame direction on the same highway. Howlong will it take for the car to catch up to thetruck, if both vehicles continue in the samedirection on the highway?

[95]



96. A bicyclist leaves Bay Shore traveling at anaverage speed of 12 miles per hour. Threehours later, a car leaves Bay Shore, on thesame route, traveling at an average speed of30 miles per hour. How many hours after thecar leaves Bay Shore will the car catch up tothe cyclist?

[96]

[A] 4 [B] 5 [C] 2 [D] 8

97. A truck travels 40 miles from point A to pointB in exactly 1 hour. When the truck ishalfway between point A and point B, a carstarts from point A and travels at 50 miles perhour. How many miles has the car traveledwhen the truck reaches point B?

[97]

[A] 60 [B] 25 [C] 40 [D] 50

98. Two trains leave the same station at the sametime and travel in opposite directions. Onetrain travels at 80 kilometers per hour and theother at 100 kilometers per hour. In howmany hours will they be 900 kilometersapart?

[98]

99. Bob and Latoya both drove to a baseballgame at a college stadium. Bob lives 70miles from the stadium and Latoya lives 60miles from it, as shown in the accompanyingdiagram. Bob drove at a rate of 50 miles perhour, and Latoya drove at a rate of 40 milesper hour. If they both left home at the sametime, who got to the stadium first?

[99]

100. A girl can ski down a hill five times as fast asshe can climb up the same hill. If she canclimb up the hill and ski down in a total of 9minutes, how many minutes does it take herto climb up the hill?

[100]

[A] 1.8 [B] 7.2 [C] 7.5 [D] 4.5

Review P. 166-167: Proportions andPercents

101. A 14-gram serving of mayonnaise contains 11grams of fat. What percent of themayonnaise, to the nearest tenth of a percent,is fat?

[101]



102. A recent survey shows that the average manwill spend 141,288 hours sleeping, 85,725hours working, 81,681 hours watchingtelevision, 9,945 hours commuting, 1,662hours kissing, and 363,447 hours on othertasks during his lifetime. What percent of hislife, to the nearest tenth of a percent, does hespend sleeping?

[102]

103. Twenty-five percent of 88 is the same as whatpercent of 22?

[103]

[A] 100% [B] 12 12

%

[C] 40% [D] 50%

104. Ninety percent of the ninth grade students atRichbartville High School take algebra. If180 ninth grade students take algebra, howmany ninth grade students do not takealgebra?

[104]

105. Linda paid $48 for a jacket that was on salefor 25% of the original price. What was theoriginal price of the jacket?

[105]

[A] $60 [B] $96 [C] $192 [D] $72

106. Sue bought a picnic table on sale for 50% offthe original price. The store charged her 10%tax and her final cost was $22.00. What wasthe original price of the picnic table?

[106]

107. A painting that regularly sells for a price of$55 is on sale for 20% off. The sales tax onthe painting is 7%. Will the final total cost ofthe painting differ depending on whether thesalesperson deducts the discount beforeadding the sales tax or takes the discount aftercomputing the sum of the original price andthe sales tax on $55?

[107]

108. Walter is a waiter at the Towne Diner. Heearns a daily wage of $50, plus tips that areequal to 15% of the total cost of the dinnershe serves. What was the total cost of thedinners he served if he earned $170 onTuesday?

[108]

109. In bowling leagues, some players are awardedextra points called their "handicap." The"handicap" in Anthony's league is 80% of thedifference between 200 and the bowler'saverage. Anthony's average is 145. What isAnthony's "handicap"?

[109]

110. The Edison Lightbulb Company tests 5% oftheir daily production of lightbulbs. If 500bulbs were tested on Tuesday, what was thetotal number of bulbs produced that day?

[110]

[A] 10,000 [B] 100,000

[C] 25 [D] 1,000



111. In his will, a man leaves one-half of hismoney to his wife, one-half of what is thenleft to his older child, and one-half of what isthen left to his younger child. His twocousins divide the remainder equally, eachreceiving $2,000. What was the total amountof money in the man's will?

[111]

[A] $16,000 [B] $40,000

[C] $32,000 [D] $24,000

112. A boy got 50% of the questions on a testcorrect. If he had 10 questions correct out of

the first 12, and 14

of the remaining questions

correct, how many questions were on the test?

[112]

[A] 16 [B] 28 [C] 24 [D] 26

113. There are 28 students in a mathematics class.

If 14

of the students are called to the guidance

office, 13

of the remaining students are called

to the nurse, and, finally, 12

of those left go to

the library, how many students remain in theclassroom?

[113]

114. In a town election, candidates A and B wererunning for mayor. There were 30,500 people

eligible to vote, and 34

of them actually

voted. Candidate B received 13

of the votes

cast. How many people voted for candidateB? What percent of the votes cast, to thenearest tenth of a percent, did candidate Areceive?

[114]

115. After an ice storm, the following headlineswere reported in the Glacier County Times:Monday: Ice Storm Devastates County - 8out of every 10 homes lose electrical powerTuesday: Restoration Begins - Power

restored to 12

of affected homes

Wednesday: More Freezing Rain - Powerlost by 20% of homes that had power onTuesdayBased on these headlines, what fractionalportion of homes in Glacier County hadelectrical power on Wednesday?

[115]

Lesson 3-7: Percent of Change

Part 1: Percent of Change

116. The world population was 4.2 billion peoplein 1982. The population in 1999 reached 6billion. Find the percent of change from 1982to 1999.

[116]



117. Rashawn bought a CD that cost $18.99 andpaid $20.51, including sales tax. What wasthe rate of the sales tax?

[117]

[A] 8% [B] 2% [C] 3% [D] 5%

Part 2: Percent Error

118. A factory packs CD cases into cartons for amusic company. Each carton is designed tohold 1,152 CD cases. The Quality ControlUnit in the factory expects an error of lessthan 5% over or under the desired packingnumber. What is the least number and themost number of CD cases that could bepacked in a carton and still be acceptable tothe Quality Control Unit?

[118]

Lesson 3-8: Finding and EstimatingSquare Roots

Part 1: Finding Square Roots

119. The expression 54 − b is equivalent to apositive integer when b is equal to

[119]

[A] -10 [B] 16 [C] 4 [D] 54

Part 2: Estimating and Using Square Roots

120. The expression 93 is a number between

[120]

[A] 8 and 9 [B] 46 and 47

[C] 9 and 10 [D] 3 and 9

121. Which point on the accompanying numberline best represents the position of 5 ?

[121]

[A] D [B] A [C] B [D] C

122. The amount of time, t, in seconds, it takes anobject to fall a distance, d, in meters, is

expressed by the formula t d=4 9.

.

Approximately how long will it take an objectto fall 75 meters?

[122]

[A] 2.34 sec [B] 0.26 sec

[C] 7.7 sec [D] 3.9 sec

Lesson 3-9: The Pythagorean Theorem

Part 1: Solving Problems Using the PythagoreanTheorem

123. The set of integers {3,4,5} is a Pythagoreantriple. Another such set is

[123]

[A] {8,15,17} [B] {6,7,8}

[C] {6,12,13} [D] {6,8,12}

124. A builder is building a rectangular deck withdimensions of 16 feet by 30 feet. To ensurethat the sides form 90° angles, what shouldeach diagonal measure?

[124]

[A] 46 ft [B] 16 ft [C] 30 ft [D] 34 ft



125. If the length of the legs of a right triangle are5 and 7, what is the length of the hypotenuse?

[125]

[A] 74 [B] 2 6

[C] 2 3 [D] 2

126. If the length of a rectangular television screenis 20 inches and its height is 15 inches, whatis the length of its diagonal, in inches?

[126]

[A] 25 [B] 13.2 [C] 5 [D] 35

127. The NuFone Communications Company mustrun a telephone line between two poles atopposite ends of a lake, as shown in theaccompanying diagram. The length andwidth of the lake are 75 feet and 30 feet,respectively.

What is the distance between the two poles, tothe nearest foot?

[127]

[A] 45 [B] 69 [C] 105 [D] 81

128. A wall is supported by a brace 10 feet long, asshown in the diagram below. If one end ofthe brace is placed 6 feet from the base of thewall, how many feet up the wall does thebrace reach?

[128]

129. The accompanying diagram shows a kite thathas been secured to a stake in the ground witha 20-foot string. The kite is located 12 feetfrom the ground, directly over point X. Whatis the distance, in feet, between the stake andpoint X?

[129]

130. How many feet from the base of a house musta 39-foot ladder be placed so that the top ofthe ladder will reach a point on the house 36feet from the ground?

[130]



131. A woman has a ladder that is 13 feet long. Ifshe sets the base of the ladder on level ground5 feet from the side of a house, how many feetabove the ground will the top of the ladder bewhen it rests against the house?

[131]

[A] 11 [B] 12 [C] 9 [D] 8

132. In the accompanying diagram of righttriangles ABD and DBC, AB = 5, AD = 4,and CD = 1. Find the length of BC, to thenearest tenth.

[132]

133. In the accompanying diagram, triangle A issimilar to triangle B. Find the value of n.

[133]

134. A straw is placed into a rectangular box thatis 3 inches by 4 inches by 8 inches, as shownin the accompanying diagram. If the strawfits exactly into the box diagonally from thebottom left front corner to the top right backcorner, how long is the straw, to the nearesttenth of an inch?

[134]

135. The accompanying diagram shows asemicircular arch over a street that has aradius of 14 feet. A banner is attached to thearch at points A and B, such that AE = EB = 5feet. How many feet above the ground arethese points of attachment for the banner?

[135]


Chapter 4: Solving Inequalities

Lesson 4-1: Inequalities and TheirGraphs

Part 2: Graphing and Writing Inequalities in OneVariable

1. Which graph best represents the solution setfor the inequality x > 2 ?

[1]

[A]

[B]

[C]

[D]

Lesson 4-4: Solving Multi-StepInequalities

Part 1: Solving Inequalities with Variables on OneSide

2. In the set of positive integers, what is thesolution set of the inequality 2x - 3 < 5?

[2]

[A] {1, 2, 3} [B] {1, 2, 3, 4}

[C] {0, 1, 2, 3} [D] {0, 1, 2, 3, 4}

3. Which number is in the solution set of theinequality 5x + 3 > 38?

[3]

[A] 7 [B] 6 [C] 8 [D] 5

4. Find all negative odd integers that satisfy thefollowing inequality:

− + ≤3 1 17x

[4]

5. There are 461 students and 20 teachers takingbuses on a trip to a museum. Each bus canseat a maximum of 52. What is the leastnumber of buses needed for the trip?

[5]

[A] 8 [B] 9 [C] 11 [D] 10

6. In a hockey league, 87 players play on sevendifferent teams. Each team has at least 12players. What is the largest possible numberof players on any one team?

[6]

[A] 13 [B] 15 [C] 14 [D] 21

7. A doughnut shop charges $0.70 for eachdoughnut and $0.30 for a carryout box.Shirley has $5.00 to spend. At most, howmany doughnuts can she buy if she also wantsthem in one carryout box?

[7]

8. A swimmer plans to swim at least 100 lapsduring a 6-day period. During this period, theswimmer will increase the number of lapscompleted each day by one lap. What is theleast number of laps the swimmer mustcomplete on the first day?

[8]



Part 2: Solving Inequalities with Variables on BothSides

9. The inequality 12

3 2 6x x+ < − is equivalent

to

[9]

[A] x > − 56

[B] x < 6

[C] x > 6 [D] x < − 56

Lesson 4-5: Compound Inequalities

Part 1: Solving Compound Inequalities ContainingAnd

10. Which inequality is represented in the graphbelow?

[10]

[A] − ≤ <4 2x [B] − ≤ ≤4 2x[C] − < ≤4 2x [D] − < <4 2x

11. Which inequality is represented in theaccompanying graph?

[11]

[A] − < <3 4x [B] − ≤ ≤3 4x[C] − ≤ <3 4x [D] − < ≤3 4x

12. In order to be admitted for a certain ride at anamusement park, a child must be greater thanor equal to 36 inches tall and less than 48inches tall. Which graph represents theseconditions?

[12]

[A]

[B]

[C]

[D]

13. Which graph represents the solution set for2 4 8x − ≤ and x + ≥5 7 ?

[13]

[A]

[B]

[C]

[D]

14. The manufacturer of Ron's car recommendsthat the tire pressure be at least 26 pounds persquare inch and less than 35 pounds persquare inch. On the accompanying numberline, graph the inequality that represents therecommended tire pressure.

[14]



15. If a + b is less than c + d, and d + e is lessthan a + b, then e is

[15]

[A] less than c [B] less than d

[C] greater than d [D] equal to c

16. On June 17, the temperature in New YorkCity ranged from 90° to 99°, while thetemperature in Niagara Falls ranged from 60°to 69°. The difference in the temperatures inthese two cities must be between

[16]

[A] 25° and 35° [B] 30° and 40°

[C] 20° and 30° [D] 20° and 40°

Lesson 4-6: Absolute Value Equationsand Inequalities

Part 2: Solving Absolute Value Inequalities

17. Which equation states that the temperature, t,in a room is less than 3° from 68°?

[17]

[A] |68 + t| < 3 [B] |68 - t| < 3

[C] |3 - t| < 68 [D] |3 + t| < 68

18. The solution set of 3 2 1x + < contains

[18]

[A] both positive and negative real numbers

[B] only negative real numbers

[C] only positive real numbers

[D] no real numbers

19. What is the solution set of the inequality3 2 4− ≥x ?

[19]

[A] { | }x x− ≤ ≤12

72

[B] { | }x x x≤ − ≥12

72

or

[C] { | }x x x≤ ≥72

12

or

[D] { | }x x72

12

≤ ≤ −

20. What is the solution of the inequalityx + ≤3 5?

[20]

[A] x or x≤ − ≥8 2 [B] − ≤ ≤8 2x

[C] − ≤ ≤2 8x [D] x or x≤ − ≥2 8

21. The solution of 2 3 5x − < is

[21]

[A] x < 4 [B] -1 < x < 4

[C] x > -1 [D] x < -1 or x > 4

22. What is the solution of the inequalityy + >8 3?

[22]

[A] -11 < y < -5 [B] y > -5 or y < -11

[C] -5 < y < 11 [D] y > -5



23. What is the solution set of the inequality2 1 9x − < ?

[23]

[A] { | }x x < −4 [B] { | }x x x< − >4 5 or

[C] { | }x x− < <4 5 [D] { | }x x < 5

24. Which graph represents the solution set of2 1 7x − < ?

[24]

[A]

[B]

[C]

[D]

25. Which graph represents the solution set forthe expression 2 3 7x + > ?

[25]

[A]

[B]

[C]

[D]

26. Which inequality is represented by theaccompanying graph?

[26]

[A] x + ≥3 2 [B] x − ≥5 2

[C] x + >2 5 [D] x − ≤1 5

27. The solution set of which inequality isrepresented by the accompanying graph?

[27]

[A] x − <2 7 [B] x − >2 7

[C] 2 7− > −x [D] 2 7− < −x

28. The inequality 15 24 30. C − ≤ represents therange of monthly average temperatures, C, indegrees Celsius, for Toledo, Ohio. Solve forC.

[28]

29. The heights, h, of the students in the chorus atCentral Middle School satisfy the inequalityh − ≤57 5

2325. . , when h is measured in

inches. Determine the interval in which theseheights lie and express your answer to thenearest tenth of a foot. [Only an algebraicsolution can receive full credit.]

[29]

30. A depth finder shows that the water in acertain place is 620 feet deep. The differencebetween d, the actual depth of the water, andthe reading is d − 620 and must be less thanor equal to 0.05d. Find the minimum andmaximum values of d, to the nearest tenth ofa foot.

[30]


Chapter 5: Graphs and Functions

Lesson 5-1: Relating Graphs to Events

Part 1: Interpreting, Sketching, and AnalyzingGraphs

1. John left his home and walked 3 blocks to hisschool, as shown in the accompanying graph.

What is one possible interpretation of thesection of the graph from point B to point C?

[1]

[A] John arrived at school and stayedthroughout the day.

[B] John reached the top of a hill and beganwalking on level ground.

[C] John waited before crossing a busy street.

[D] John returned home to get hismathematics homework.

2. The accompanying graph shows the amountof water left in Rover's water dish over aperiod of time.

How long did Rover wait from the end of hisfirst drink to the start of his second drink ofwater?

[2]

[A] 75 sec [B] 30 sec

[C] 10 sec [D] 60 sec

3. The accompanying graph shows Marie'sdistance from home (A) to work (F) at varioustimes during her drive.

a Marie left her briefcase at home and had toreturn to get it. State which point representswhen she turned back around to go home andexplain how you arrived at that conclusion.b Marie also had to wait at the railroad tracksfor a train to pass. How long did she wait?

[3]



4. A bug travels up a tree, from the ground, overa 30-second interval. It travels fast at firstand then slows down. It stops for 10 seconds,then proceeds slowly, speeding up as it goes.Which sketch best illustrates the bug'sdistance (d) from the ground over the 30-second interval (t)?

[4]

[A] [B]

[C] [D]

Lesson 5-2: Relations and Functions

Part 1: Identifying Relations and Functions

5. Which graph is not a function?

[5]

[A] [B]

[C] [D]

6. Which graph does not represent a function ofx?

[6]

[A] [B]

[C] [D]

7. Each graph below represents a possiblerelationship between temperature andpressure. Which graph does not represent afunction?

[7]

[A] [B]

[C] [D]

8. Which set of ordered pairs is not a function?

[8]

[A] {(4,1), (5,1), (6,1), (7,1)}

[B] {(1,2), (3,4), (4,5), (5,6)}

[C] {(3,1), (2,1), (1,2), (3,2)}

[D] {(0,0), (1,1), (2,2), (3,3)}



9. Which set of ordered pairs does not representa function?

[9]

[A] {(3,-2), (4,-3), (5,-4), (6,-5)}

[B] {(3,-2), (-2,3), (4,-1), (-1,4)}

[C] {(3,-2), (3,-4), (4,-1), (4,-3)}

[D] {(3,-2), (5,-2), (4,-2), (-1,-2)}

Part 2: Evaluating Functions

10. If f x x x( ) ( ) ,= + −4 40 1 what is the value off ( ) ?4

[10]

[A] 1 116

[B] 4 116

[C] −12 [D] 0

Lesson 5-5: Direct Variation

Part 1: Writing the Equation of a Direct Variation

11. Which equation represents the direct variation

relationship of the equation xy

= 12

?

[11]

[A] y x= 3 [B] x y= 2

[C] y x= + 12

[D] y x= 2

Part 2: Proportions and Equations of DirectVariations

12. Which table does not show an example ofdirect variation?

[12]

[A] [B]

[C] [D]

13. Julio's wages vary directly as the number ofhours that he works. If his wages for 5 hoursare $29.75, how much will he earn for 30hours?

[13]

Lesson 5-6: Inverse Variation

Part 1: Solving Inverse Variations

14. Explain how a person can determine if a setof data represents inverse variation and givean example using a table of values.

[14]



15. For a rectangular garden with a fixed area, thelength of the garden varies inversely with thewidth. Which equation represents thissituation for an area of 36 square units?

[15]

[A] yx

= 36 [B] x y− = 36

[C] x y+ = 36 [D] y x= 36

16. If R varies inversely as S, when S is doubled,R is multiplied by

[16]

[A] 14

[B] 12

[C] 4 [D] 2

17. In a given rectangle, the length variesinversely as the width. If the length isdoubled, the width will

[17]

[A] increase by 2 [B] be multiplied by 2

[C] be divided by 2 [D] remain the same

18. The speed of a laundry truck varies inverselywith the time it takes to reach its destination.If the truck takes 3 hours to reach itsdestination traveling at a constant speed of 50miles per hour, how long will it take to reachthe same location when it travels at a constantspeed of 60 miles per hour?

[18]

[A] 2 hours [B] 2 23

hours

[C] 2 13

hours [D] 2 12

hours

19. The time it takes to travel to a location variesinversely to the speed traveled. It takes 4hours driving at an average speed of 55 milesper hour to reach a location. To the nearesttenth of an hour, how long will it take toreach the same location driving at an averagespeed of 50 miles per hour?

[19]

20. When air is pumped into an automobile tire,the pressure is inversely proportional to thevolume. If the pressure is 35 pounds whenthe volume is 120 cubic inches, what is thepressure, in pounds, when the volume is 140cubic inches?

[20]

21. Boyle's Law states that the pressure ofcompressed gas is inversely proportional to itsvolume. The pressure of a certain sample of agas is 16 kilopascals when its volume is 1,800liters. What is the pressure, in kilopascals,when its volume is 900 liters?

[21]

22. According to Boyle's Law, the pressure, p, ofa compressed gas is inversely proportional tothe volume, v. If a pressure of 20 pounds persquare inch exists when the volume of the gasis 500 cubic inches, what is the pressure whenthe gas is compressed to 400 cubic inches?

[22]

[A] 50 lb / in2 [B] 25 lb / in2

[C] 16 lb / in2 [D] 40 lb / in2



23. Camisha is paying a band $330 to play at hergraduation party. The amount each memberearns, d, varies inversely as the number ofmembers who play, n. The graph of theequation that represents the relationshipbetween d and n is an example of

[23]

[A] an ellipse [B] a hyperbola

[C] a line [D] a parabola

24. The price per person to rent a limousine for aprom varies inversely as the number ofpassengers. If five people rent the limousine,the cost is $70 each. How many people arerenting the limousine when the cost percouple is $87.50?

[24]

25. To balance a seesaw, the distance, in feet, aperson is from the fulcrum is inverselyproportional to the person's weight, inpounds. Bill, who weighs 150 pounds, issitting 4 feet away from the fulcrum. If Danweighs 120 pounds, how far from the fulcrumshould he sit to balance the seesaw?

[25]

[A] 3.5 ft [B] 5 ft [C] 3 ft [D] 4.5 ft

26. A pulley that has a diameter of 8 inches isbelted to a pulley that has a diameter of 12inches. The 8-inch-diameter pulley is runningat 1,548 revolutions per minute. If the speedsof the pulleys vary inversely to theirdiameters, how many revolutions per minutedoes the larger pulley make?

[26]

Activity Lab P. 304-305: Histograms

27. The test scores for 10 students in Ms.Sampson's homeroom were 61, 67, 81, 83, 87,88, 89, 90, 98, and 100. Which frequencytable is accurate for this set of data?

[27]

[A]

[B]

[C]

[D]



28. The following set of data represents thescores on a mathematics quiz:58, 79, 81, 99, 68, 92, 76, 84, 53, 57, 81, 91,77, 50, 65, 57, 51, 72, 84, 89Complete the frequency table below and, onthe accompanying grid, draw and label afrequency histogram of these scores.

[28]

29. The scores on a mathematics test were 70, 55,61, 80, 85, 72, 65, 40, 74, 68, and 84.Complete the accompanying table, and usethe table to construct a frequency histogramfor these scores.

[29]



30. The accompanying histogram shows theheights of the students in Kyra's health class.

What is the total number of students in theclass?

[30]

[A] 15 [B] 209 [C] 5 [D] 16

31. On a science quiz, 20 students received thefollowing scores: 100, 95, 95, 90, 85, 85, 85,80, 80, 80, 80, 75, 75, 75, 70, 70, 65, 65, 60,55. Construct a statistical graph, such as ahistogram or a stem-and-leaf plot, to displaythis data. [Be sure to title the graph and labelall axes or parts used.]If your type of plot requires a grid, show yourwork here.

If no grid is necessary, show your work here.

[31]

32. Sarah's mathematics grades for one markingperiod were 85, 72, 97, 81, 77, 93, 100, 75,86, 70, 96, and 80.a Complete the tally sheet and frequencytable below, and construct and label afrequency histogram for Sarah's grades usingthe accompanying grid.

b Which interval contains the 75th percentile(upper quartile)?

[32]



33. In the time trials for the 400-meter run at thestate sectionals, the 15 runners recorded thetimes shown in the table below.

a Using the data from the frequency column,draw a frequency histogram on the gridprovided below.

b What percent of the runners completed thetime trial between 52.0 and 53.9 seconds?

[33]

34. The following data consists of the weights, inpounds, of 30 adults:195, 206, 100, 98, 150, 210, 195, 106, 195,168, 180, 212, 104, 195, 100,216, 195, 209, 112, 99, 206, 116, 195, 100,142, 100, 135, 98, 160, 155Using the data, complete the accompanyingcumulative frequency table and construct acumulative frequency histogram on the gridbelow.

[34]



35. The accompanying table shows the weights,in pounds, for the students in an algebra class.Using the data, complete the cumulativefrequency table and construct a cumulativefrequency histogram on the grid below.

[35]


Chapter 6: Linear Equations and Their Graphs

Lesson 6-1: Rate of Change and Slope

Part 2: Finding Slope

1. What is the slope of line in theaccompanying diagram?

[1]

[A] 23

[B] − 23

[C] 32

[D] − 32

2. What is the slope of line shown in theaccompanying diagram?

[2]

[A] 34

[B] − 43

[C] 43

[D] − 34

3. The accompanying figure shows the graph ofthe equation x = 5.

What is the slope of the line x = 5?

[3]

[A] 0 [B] undefined [C] -5 [D] 5

4. If a line is horizontal, its slope is

[4]

[A] 1 [B] negative

[C] 0 [D] undefined



5. A straight line with slope 5 contains thepoints (1,2) and (3,K). Find the value of K.[The use of the accompanying grid isoptional.]

[5]

Lesson 6-2: Slope-Intercept Form

Part 1: Writing Linear Equations

6. An equation of the line that has a slope of 3and a y-intercept of -2 is

[6]

[A] y = 3x - 2 [B] x = 3y - 2

[C] y = -2x + 3 [D] y = - x

7. What is the slope of the line whose equationis 2y = 5x + 4?

[7]

[A] 52

[B] 5 [C] 2 [D] 25

8. What is the y-intercept of the graph of the line

whose equation is y x= − +25

4 ?

[8]

[A] − 52

[B] 0 [C] 4 [D] − 25

9. If point (-1,0) is on the line whose equation isy x b= +2 , what is the value of b?

[9]

[A] 0 [B] 2 [C] 1 [D] 3

10. Line contains the points (0,4) and (2,0).Show that the point (-25,81) does or does notlie on line .

[10]

11. Write the equation for the line shown in theaccompanying graph. Explain your answer.

[11]



Lesson 6-3: Applying Linear Functions

Part 1: Interpreting Linear Functions

12. The accompanying graph represents theyearly cost of playing 0 to 5 games of golf atthe Shadybrook Golf Course. What is thetotal cost of joining the club and playing 10games during the year?

[12]

Lesson 6-4: Standard Form

Part 1: Graphing Equations Using Intercepts

13. The line 3 2 12x y− = has

[13]

[A] a slope of 32

and a y-intercept of -6

[B] a slope of -3 and a y-intercept of -6

[C] a slope of − 32

and a y-intercept of 6

[D] a slope of 3 and a y-intercept of -2

14. What is the slope of the line whose equationis 3 4 16 0x y− − = ?

[14]

[A] 34

[B] 3 [C] -4 [D] 43

15. What is the slope of the linear equation5 10 15y x− = − ?

[15]

[A] 2 [B] -10 [C] 10 [D] -15

16. The graph of the equation x y+ =3 6intersects the y-axis at the point whosecoordinates are

[16]

[A] (0,18) [B] (6,0)

[C] (0,2) [D] (0,6)

17. Point (k, -3) lies on the line whose equation isx y− = −2 2. What is the value of k?

[17]

[A] 6 [B] 8 [C] -6 [D] -8

18. The graph of the equation 2 6 4x y+ = passesthrough point ( , ).x −2 What is the value of x?

[18]

[A] 8 [B] 16 [C] 4 [D] -4



19. Which graph represents the equation x = 2?

[19]

[A] [B]

[C] [D]

20. Which statement describes the graph ofx = 4?

[20]

[A] It passes through the point (0, 4).

[B] It is parallel to the y-axis.

[C] It is parallel to the x-axis.

[D] It has a slope of 4.

Lesson 6-6: Parallel and PerpendicularLines

Part 1: Parallel Lines

21. Which equation represents a line parallel tothe line y = 2x - 5?

[21]

[A] y x= − −12

5 [B] y x= +2 5

[C] y x= −5 2 [D] y x= − −2 5

22. Which equation represents a line that isparallel to the line whose equation is2 3 12x y+ = ?

[22]

[A] 6 4 2x y+ = − [B] 6 4 2y x+ =

[C] 4 6 2x y− = [D] 6 4 2y x− =

23. Line P and line C lie on a coordinate planeand have equal slopes. Neither line crossesthe second or third quadrant. Lines P and Cmust

[23]

[A] be perpendicular

[B] be vertical [C] be horizontal

[D] form an angle of 45°

24. Which properties best describe the coordinategraph of two distinct parallel lines?

[24]

[A] different slopes and different intercepts

[B] same slopes and same intercepts

[C] same slopes and different intercepts

[D] different slopes and same intercepts

25. If two lines are parallel and the slope of oneof the lines is m, what is the product of theirslopes?

[25]

[A] m2 [B] 0 [C] 1 [D] 2m

Part 2: Perpendicular Lines

26. Which equation represents a line that isperpendicular to the line whose equation is− = +2 3 7y x ?

[26]

[A] y x= −32

3 [B] y x= + 7

[C] 2 3 3y x= − [D] y x= −23

3



27. Which line is perpendicular to the line whoseequation is 5 6 3y x+ = − ?

[27]

[A] y x= +53

7 [B] y x= − +35

7

[C] y x= − +53

7 [D] y x= +35

7

28. Which statement describes the lines whose

equations are y x= +13

12 and 6 2 6y x= + ?

[28]

[A] They intersect each other.

[B] They are perpendicular to each other.

[C] They are segments.

[D] They are parallel to each other.

29. Shanaya graphed the line represented by theequation y x= − 6.Write an equation for a line that is parallel tothe given line.Write an equation for a line that isperpendicular to the given line.Write an equation for a line that is identical tothe given line but has different coefficients.

[29]

30. If the product of x and 1m

is − ≠1 0, ,m then

x is equivalent to

[30]

[A] − 1m

[B] m [C] − m [D] 1− m

Lesson 6-7: Scatter Plots and Equationsof Lines

Part 2: Writing an Equation for a Line of Best Fit

31. The accompanying table shows theenrollment of a preschool from 1980 through2000. Write a linear regression equation tomodel the data in the table.

[31]

32. The 1999 win-loss statistics for the AmericanLeague East baseball teams on a particulardate is shown in the accompanying chart.

Find the mean for the number of wins, W ,and the mean for the number of losses, L,and determine if the point (W , L ) is a pointon the line of best fit. Justify your answer.

[32]



33. A real estate agent plans to compare the priceof a cottage, y, in a town on the seashore tothe number of blocks, x, the cottage is fromthe beach. The accompanying table shows arandom sample of sales and location data.Write a linear regression equation that relatesthe price of a cottage to its distance from thebeach.Use the equation to predict the price of acottage, to the nearest dollar, located threeblocks from the beach.

[33]

34. The availability of leaded gasoline in NewYork State is decreasing, as shown in theaccompanying table.

Determine a linear relationship for x (years)versus y (gallons available), based on the datagiven. The data should be entered using theyear and gallons available (in thousands),such as (1984,150).If this relationship continues, determine thenumber of gallons of leaded gasolineavailable in New York State in the year 2005.If this relationship continues, during whatyear will leaded gasoline first becomeunavailable in New York State?

[34]

35. The accompanying table illustrates thenumber of movie theaters showing a popularfilm and the film's weekly gross earnings, inmillions of dollars.

Write the linear regression equation for thisset of data, rounding values to five decimalplaces.Using this linear regression equation, find theapproximate gross earnings, in millions ofdollars, generated by 610 theaters. Roundyour answer to two decimal places.Find the minimum number of theaters thatwould generate at least 7.65 million dollars ingross earnings in one week.

[35]



36. In a mathematics class of ten students, theteacher wanted to determine how a homeworkgrade influenced a student's performance onthe subsequent test. The homework grade andsubsequent test grade for each student aregiven in the accompanying table.

a Give the equation of the linear regressionline for this set of data.b A new student comes to the class and earnsa homework grade of 78. Based on theequation in part a, what grade would theteacher predict the student would receive onthe subsequent test, to the nearest integer?

[36]

37. The table below shows the results of anexperiment that relates the height at which aball is dropped, x, to the height of its firstbounce, y.

Find x , the mean of the drop heights.Find y, the mean of the bounce heights.Find the linear regression equation that bestfits the data.Show that ( , )x y is a point on the line ofregression. [The use of the grid is optional.]

[37]



38. Two different tests were designed to measureunderstanding of a topic. The two tests weregiven to ten students with the followingresults:

Construct a scatter plot for these scores, andthen write an equation for the line of best fit(round slope and intercept to the nearesthundredth).

Find the correlation coefficient.Predict the score, to the nearest integer, ontest y for a student who scored 87 on test x.

[38]

39. Since 1990, fireworks usage nationwide hasgrown, as shown in the accompanying table,where t represents the number of years since1990, and p represents the fireworks usageper year, in millions of pounds.

Find the equation of the linear regressionmodel for this set of data, where t is theindependent variable. Round values to fourdecimal places.Using this equation, determine in what yearfireworks usage would have reached 99million pounds.Based on this linear model, how manymillions of pounds of fireworks would beused in the year 2008? Round your answer tothe nearest tenth.

[39]



40. A factory is producing and stockpiling metalsheets to be shipped to an automobilemanufacturing plant. The factory ships onlywhen there is a minimum of 2,050 sheets instock. The accompanying table shows theday, x, and the number of sheets in stock, f(x).

Write the linear regression equation for thisset of data, rounding the coefficients to fourdecimal places.Use this equation to determine the day thesheets will be shipped.

[40]

41. A linear regression equation of best fitbetween a student's attendance and the degreeof success in school is h = 0.5x + 68.5. Thecorrelation coefficient, r, for these data wouldbe

[41]

[A] 0 < r < 1 [B] -1 < r < 0

[C] r = 0 [D] r = -1

42. The relationship of a woman's shoe size andlength of a woman's foot, in inches, is givenin the accompanying table.

The linear correlation coefficient for thisrelationship is

[42]

[A] 0 [B] -1 [C] 1 [D] 0.5

43. Which scatter diagram shows the strongestpositive correlation?

[43]

[A] [B]

[C] [D]

44. Which graph represents data used in a linearregression that produces a correlationcoefficient closest to −1?

[44]

[A] [B]

[C] [D]



45. What could be the approximate value of thecorrelation coefficient for the accompanyingscatter plot?

[45]

[A] -0.85 [B] -0.16 [C] 0.90 [D] 0.21

Lesson 6-8: Graphing Absolute ValueEquations

Part 1: Translating Graphs of Absolute ValueEquations

46. Which equation is represented by theaccompanying graph?

[46]

[A] y x= + −3 1 [B] y x= − +3 1

[C] y x= − 3 [D] y x= − +( )3 12

47. The graph below represents f x( ) .

Which graph best represents f x( ) ?

[47]

[A] [B]

[C] [D]


Chapter 7: Systems of Equations and Inequalities

Lesson 7-1: Solving Systems byGraphing

Part 1: Solving Systems by Graphing

1. When solved graphically, which system ofequations will have exactly one point ofintersection?

[1]

[A]2515

+−=+−=

xyxy [B]

1720

+=−−=

xyxy

[C]305.0305.0

−=+=

xyxy [D]

196.0

1253

−=

+=

xy

xy

Lesson 7-3: Solving Systems UsingElimination

Part 1: Adding or Subtracting to Solve Systems

2. Which ordered pair is the solution of thefollowing system of equations?

3 2 42 2 24

x yx y

+ =− + =

[2]

[A] (-4,-8) [B] (2,-1)

[C] (2,-5) [D] (-4,8)

3. What point is the intersection of the graphs ofthe lines 2x - y = 3 and x + y = 3?

[3]

[A] (2, 1) [B] (1, 2)

[C] (3, 3) [D] (3, 0)

4. Which ordered pair satisfies the system ofequations below?

3 82

x yx y

− =+ =

[4]

[A] (5, -3) [B] (3, -1)

[C] (2.5, 0.5) [D] (2.5, -0.5)

5. What is the value of y in the following systemof equations?

2 3 62 2

x yx y

+ =+ = −

[5]

[A] 1 [B] 4 [C] -3 [D] 2

Lesson 7-4: Applications of LinearSystems

Part 1: Writing Systems of Linear Equations

6. Tanisha and Rachel had lunch at the mall.Tanisha ordered three slices of pizza and twocolas. Rachel ordered two slices of pizza andthree colas. Tanisha's bill was $6.00, andRachel's bill was $5.25. What was the priceof one slice of pizza? What was the price ofone cola?

[6]



7. When Tony received his weekly allowance,he decided to purchase candy bars for all hisfriends. Tony bought three Milk Chocolatebars and four Creamy Nougat bars, whichcost a total of $4.25 without tax. Then herealized this candy would not be enough forall his friends, so he returned to the store andbought an additional six Milk Chocolate barsand four Creamy Nougat bars, which cost atotal of $6.50 without tax. How much dideach type of candy bar cost?

[7]

8. Alexandra purchases two doughnuts and threecookies at a doughnut shop and is charged$3.30. Briana purchases five doughnuts andtwo cookies at the same shop for $4.95. Allthe doughnuts have the same price and all thecookies have the same price. Find the cost ofone doughnut and find the cost of one cookie.

[8]

9. Ramón rented a sprayer and a generator. Onhis first job, he used each piece of equipmentfor 6 hours at a total cost of $90. On hissecond job, he used the sprayer for 4 hoursand the generator for 8 hours at a total cost of$100. What was the hourly cost of each pieceof equipment?

[9]

10. Three times as many robins as cardinalsvisited a bird feeder. If a total of 20 robinsand cardinals visited the feeder, how manywere robins?

[10]

[A] 5 [B] 20 [C] 15 [D] 10

11. Sal keeps quarters, nickels, and dimes in hischange jar. He has a total of 52 coins. He hasthree more quarters than dimes and five fewernickels than dimes. How many dimes doesSal have?

[11]

[A] 20 [B] 18 [C] 13 [D] 21

12. At a concert, $720 was collected for hot dogs,hamburgers, and soft drinks. All three itemssold for $1.00 each. Twice as many hot dogswere sold as hamburgers. Three times asmany soft drinks were sold as hamburgers.The number of soft drinks sold was

[12]

[A] 480 [B] 240 [C] 360 [D] 120

13. Seth has one less than twice the number ofcompact discs (CDs) that Jason has. Raoulhas 53 more CDs than Jason has. If Sethgives Jason 25 CDs, Seth and Jason will havethe same number of CDs. How many CDsdid each of the three boys have to begin with?

[13]

14. A group of 148 people is spending five daysat a summer camp. The cook ordered 12pounds of food for each adult and 9 pounds offood for each child. A total of 1,410 poundsof food was ordered.a Write an equation or a system of equationsthat describes the above situation and defineyour variables.b Using your work from part a, find: (1) the total number of adults in the group (2) the total number of children in thegroup

[14]



15. Arielle has a collection of grasshoppers andcrickets. She has 561 insects in all. Thenumber of grasshoppers is twice the numberof crickets. Find the number of each type ofinsect that she has.

[15]

16. Mary and Amy had a total of 20 yards ofmaterial from which to make costumes. Maryused three times more material to make hercostume than Amy used, and 2 yards ofmaterial was not used. How many yards ofmaterials did Amy use for her costume?

[16]

17. Ben had twice as many nickels as dimes.Altogether, Ben had $4.20. How manynickels and how many dimes did Ben have?

[17]

18. Using only 32-cent and 20-cent stamps,Charlie put $3.36 postage on a package hesent to his sister. He used twice as many 32-cent stamps as 20-cent stamps. Determinehow many of each type of stamp he used.

[18]

19. The owner of a movie theater was countingthe money from 1 day's ticket sales. He knewthat a total of 150 tickets were sold. Adulttickets cost $7.50 each and children's ticketscost $4.75 each. If the total receipts for theday were $891.25, how many of each kind ofticket were sold?

[19]

20. There were 100 more balcony tickets thanmain-floor tickets sold for a concert. Thebalcony tickets sold for $4 and the main-floortickets sold for $12. The total amount of salesfor both types of tickets was $3,056.a Write an equation or a system of equationsthat describes the given situation. Define thevariables.b Find the number of balcony tickets thatwere sold.

[20]

21. The ninth graders at a high school are raisingmoney by selling T-shirts and baseball caps.The number of T-shirts sold was three timesthe number of caps. The profit they receivedfor each T-shirt sold was $5.00, and the profiton each cap was $2.50. If the students made atotal profit of $210, how many T-shirts andhow many caps were sold?

[21]

22. The tickets for a dance recital cost $5.00 foradults and $2.00 for children. If the totalnumber of tickets sold was 295 and the totalamount collected was $1,220, how manyadult tickets were sold? [Only an algebraicsolution can receive full credit.]

[22]

23. A ribbon 56 centimeters long is cut into twopieces. One of the pieces is three timeslonger than the other. Find the lengths, incentimeters, of both pieces of ribbon.

[23]

24. Sharu has $2.35 in nickels and dimes. If hehas a total of thirty-two coins, how many ofeach coin does he have?

[24]



25. The ratio of Tariq's telephone bill to Pria'stelephone bill was 7:5. Tariq's bill was $14more than Pria's bill. What was Tariq's bill?

[25]

[A] $28 [B] $21 [C] $49 [D] $35

26. Two numbers are in the ratio 2:5. If 6 issubtracted from their sum, the result is 50.What is the larger number?

[26]

[A] 40 [B] 55 [C] 35 [D] 45

27. Jamie is 5 years older than her sister Amy. Ifthe sum of their ages is 19, how old is Jamie?

[27]

[A] 14 [B] 12 [C] 7 [D] 5

28. A total of 600 tickets were sold for a concert.Twice as many tickets were sold in advancethan were sold at the door. If the tickets soldin advance cost $25 each and the tickets soldat the door cost $32 each, how much moneywas collected for the concert?

[28]

29. At the local video rental store, José rents twomovies and three games for a total of $15.50.At the same time, Meg rents three movies andone game for a total of $12.05. How muchmoney is needed to rent a combination of onegame and one movie?

[29]

30. The cost of a long-distance telephone call isdetermined by a flat fee for the first 5 minutesand a fixed amount for each additionalminute. If a 15-minute telephone call costs$3.25 and a 23-minute call costs $5.17, findthe cost of a 30-minute call.

[30]

31. Two health clubs offer different membershipplans. The graph below represents the totalcost of belonging to Club A and Club B forone year.

a If the yearly cost includes a membershipfee plus a monthly charge, what is themembership fee for Club A?b (1) What is the number of the month whenthe total cost is the same for both clubs? (2) What is the total cost for Club A whenboth plans are the same?c What is the monthly charge for Club B?

[31]



32. The Eye Surgery Institute just purchased anew laser machine for $500,000 to use duringeye surgery. The Institute must pay theinventor $550 each time the machine is used.If the Institute charges $2,000 for each lasersurgery, what is the minimum number ofsurgeries that must be performed in order forthe Institute to make a profit?

[32]

33. At Ron's Rental, a person can rent a big-screen television for $10 a month plus a one-time "wear-and-tear" fee of $100. At Josie'sRental, the charge is $20 a month and anadditional charge of $20 for delivery with no"wear-and-tear" fee.a If c equals the cost, write one equationrepresenting the cost of the rental for mmonths at Ron's Rental and one equationrepresenting the cost of the rental for mmonths at Josie's Rental.b On the accompanying grid, graph and labeleach equation.c From your graph, determine in whichmonth Josie's cost will equal Ron's cost.

[33]



34. The senior class is sponsoring a dance. Thecost of a student disk jockey is $40, andtickets sell for $2 each. Write a linearequation and, on the accompanying grid,graph the equation to represent therelationship between the number of ticketssold and the profit from the dance. Then findhow many tickets must be sold to break even.

[34]

35. Currently, Tyrone has $60 and his sister has$135. Both get an allowance of $5 eachweek. Tyrone decides to save his entireallowance, but his sister spends all of herseach week plus an additional $10 each week.After how many weeks will they each havethe same amount of money?[The use of the grid is optional.]

[35]

36. Juan has a cellular phone that costs $12.95per month plus 25¢ per minute for each call.Tiffany has a cellular phone that costs $14.95per month plus 15¢ per minute for each call.For what number of minutes do the two planscost the same?

[36]



37. A hotel charges $20 for the use of its diningroom and $2.50 a plate for each dinner. Anassociation gives a dinner and charges $3 aplate but invites four nonpaying guests. Ifeach person has one plate, how many payingpersons must attend for the association tocollect the exact amount needed to pay thehotel?

[37]

[A] 44 [B] 60 [C] 20 [D] 40

38. The Excel Cable Company has a monthly feeof $32.00 and an additional charge of $8.00for each premium channel. The Best CableCompany has a monthly fee of $26.00 andadditional charge of $10.00 for each premiumchannel. The Horton family is decidingwhich of these two cable companies tosubscribe to.a For what number of premium channels willthe total monthly subscription fee for theExcel and Best Cable companies be the same?b The Horton family decides to subscribe to2 premium channels for a period of one year. (1) Which cable company should theysubscribe to in order to spend less money? (2) How much money will the Hortonssave in one year by using the less expensivecompany?

[38]

39. A cellular telephone company has two plans.Plan A charges $11 a month and $0.21 perminute. Plan B charges $20 a month and$0.10 per minute. After how much time, tothe nearest minute, will the cost of plan A beequal to the cost of plan B?

[39]

[A] 81 hr 48 min [B] 1 hr 36 min

[C] 81 hr 8 min [D] 1 hr 22 m

40. Island Rent-a-Car charges a car rental fee of$40 plus $5 per hour or fraction of an hour.Wayne's Wheels charges a car rental fee of$25 plus $7.50 per hour or fraction of anhour. Under what conditions does it cost lessto rent from Island Rent-a-Car? [The use ofthe accompanying grid is optional.]

[40]

Lesson 7-5: Linear Inequalities

Part 1: Graphing Linear Inequalities

41. In the graph of y x≤ − , which quadrant iscompletely shaded?

[41]

[A] IV [B] II [C] III [D] I

42. Which ordered pair is not in the solution setof y x> +2 1?

[42]

[A] (1,4) [B] (3,8) [C] (1,6) [D] (2,5)



43. Which inequality is represented by theaccompanying graph?

[43]

[A] y > 3 [B] y < 3

[C] y ≤ 3 [D] y ≥ 3

Lesson 7-6: Systems of LinearInequalities

Part 1: Solving Systems of Linear Inequalities byGraphing

44. Which ordered pair is in the solution set ofthe system of inequalities shown in theaccompanying graph?

[44]

[A] (1,5) [B] (0,1) [C] (0,0) [D] (3,2)

45. Which point is in the solution set of thesystem of inequalities shown in theaccompanying graph?

[45]

[A] (4, -1) [B] (-4, 1)

[C] (0, 4) [D] (2, 4)

46. Which coordinate point is in the solution setfor the system of inequalities shown in theaccompanying graph?

[46]

[A] (1,-1) [B] (0,1)

[C] (3,1) [D] (2,2)



47. Graph the following systems of inequalitieson the accompanying set of axes and label thesolution set S:

y xy x

> −+ ≥

42

[Only a graphic solution can receive fullcredit.]

[47]

48. A company manufactures bicycles andskateboards. The company's daily productionof bicycles cannot exceed 10, and its dailyproduction of skateboards must be less thanor equal to 12. The combined number ofbicycles and skateboards cannot be more than16. If x is the number of bicycles and y is thenumber of skateboards, graph on theaccompanying set of axes the region thatcontains the number of bicycles andskateboards the company can manufacturedaily.

[48]


Chapter 8: Exponents and Exponential Functions

Lesson 8-1: Zero and NegativeExponents

Part 1: Zero and Negative Exponents

1. What is the value of 3 2− ?

[1]

[A] 19

[B] -9 [C] 9 [D] − 19

2. What is the value of ?2 3−

[2]

[A]61 [B] -6 [C] -8 [D]

81

3. What is the value of 3 30 2+ − ?

[3]

[A] 0 [B] 1 19

[C] 6 [D] 19

4. Which expression is equaivalent to x y− ⋅1 2 ?

[4]

[A] xy−2 [B] xy2 [C] y

x

2

[D] xy2

5. Which expression is equivalent to x−4 ?

[5]

[A] − 4x [B] 14x

[C] x4 [D] 0

Lesson 8-2: Scientific Notation

Part 1: Writing Numbers in Scientific and StandardNotation

6. Expressed in decimal notation, 4 726 10 3. × −

is

[6]

[A] 4,726 [B] 0.004726

[C] 472.6 [D] 0.04726

7. The number 8 375 10 3. × − is equivalent to

[7]

[A] 8,375 [B] 0.008375

[C] 0.0008375 [D] 0.08375

8. The number 156 10 2. × − is equivalent to

[8]

[A] 0.00156 [B] 0.156

[C] 0.0156 [D] 156

9. The expression 0 62 103. × is equivalent to

[9]

[A] 6 2 102. × [B] 62,000

[C] 0.062 [D] 6 2 104. ×

10. Which expression is equivalent to6 02 1023. × ?

[10]

[A] 60 2 1021. × [B] 6020 1021×

[C] 602 1021× [D] 0 602 1021. ×



11. According to the 2000 census, the populationof New York State was approximately18,900,000. How is this number expressed inscientific notation?

[11]

[A] 1890 104× [B] 189 107. ×

[C] 18 9 106. × [D] 189 105×

12. The distance from Earth to the Sun isapproximately 93 million miles. A scientistwould write that number as

[12]

[A] 93 107× [B] 93 1010×

[C] 9 3 106. × [D] 9 3 107. ×

13. A micron is a unit used to measure specimensviewed with a microscope. One micron isequivalent to 0.00003937 inch. How is thisnumber expressed in scientific notation?

[13]

[A] 3937 10 8× − [B] 3937 105. ×

[C] 3937 108× [D] 3937 10 5. × −

14. The approximate number of seconds in a yearis 32,000,000. When this number is writtenin scientific notation, the numerical value ofthe exponent is

[14]

[A] -7 [B] 6 [C] 8 [D] 7

15. The mass of an orchid seed is approximately0.0000035 gram. Written in scientificnotation, that mass is equivalent to 35 10. .× n

What is the value of n?

[15]

[A] -6 [B] -7 [C] -5 [D] -8

16. The size of a certain type of molecule is0.00009078 inch. If this number is expressedas 9 078 10. ,× n what is the value of n?

[16]

[A] -5 [B] 8 [C] -8 [D] 5

17. If 0.0347 is written by a scientist in the form347 10. × n , the value of n is

[17]

[A] 2 [B] -2 [C] 3 [D] -3

Part 2: Using Scientific Notation

18. What is the sum of 6 103× and 3 102× ?

[18]

[A] 6 3 103. × [B] 9 106×

[C] 9 105× [D] 18 105×

19. If the number of molecules in 1 mole of asubstance is 6 02 1023. × , then the number ofmolecules in 100 moles is

[19]

[A] 6 02 1022. × [B] 6 02 1024. ×

[C] 6 02 1021. × [D] 6 02 1025. ×

20. If the mass of a proton is 167 10 24. × − gram,what is the mass of 1,000 protons?

[20]

[A] 167 10 27. × − [B] 167 10 21. × −

[C] 167 10 23. × − [D] 167 10 22. × −



21. The distance from Earth to the imaginaryplanet Med is 17 107. × miles. If a spaceshipis capable of traveling 1,420 miles per hour,how many days will it take the spaceship toreach the planet Med? Round your answer tothe nearest day.

[21]

Lesson 8-3: Multiplication Properties ofExponents

Part 1: Multiplying

22. The expression 8 84 6− ⋅ is equivalent to

[22]

[A] 8 2− [B] 8 24− [C] 810 [D] 82

23. The expression 3 3 32 3 4⋅ ⋅ is equivalent to

[23]

[A] 39 [B] 2724 [C] 324 [D] 279

24. The expression 2 43 2⋅ is equivalent to

[24]

[A] 27 [B] 85 [C] 212 [D] 86

25. The expression ( )( )x z xy z2 3 2 is equivalent to

[25]

[A] x y z3 2 4 [B] x y z2 2 3

[C] x y z4 2 5 [D] x y z3 3 4

26. The product of 2 3x and 6 5x is

[26]

[A] 10 15x [B] 12 8x

[C] 12 15x [D] 10 8x

27. The product of 3 2x y and − 4 3xy is

[27]

[A] 12 2 3x y [B] −12 3 4x y

[C] 12 3 4x y [D] −12 2 3x y

28. The product of 3 5x and 2 4x is

[28]

[A] 6 20x [B] 5 20x [C] 6 9x [D] 5 9x

29. The product of 4 2x y and 2 3xy is

[29]

[A] 8 2 3x y [B] 8 3 4x y

[C] 8 2 4x y [D] 8 3 3x y

30. What is the product of 10 4 2x y and 3 3xy ?

[30]

[A] 30 5 6x y [B] 30 4 6x y

[C] 30 4 5x y [D] 30 5 5x y

31. What is the product of 13

2x y and 16

3xy ?

[31]

[A] 19

3 4x y [B] 118

3 4x y

[C] 12

2 3x y [D] 118

2 3x y



Lesson 8-4: More MultiplicationProperties of Exponents

Part 2: Raising a Product to a Power

32. The expression ( )6 3 6 2x y is equivalent to

[32]

[A] 36 5 8x y [B] 12 6 12x y

[C] 36 6 12x y [D] 6 6 12x y

33. Expressed in its simplest form,( )( ) ( )3 2 43 2 4x y x is equivalent to

[33]

[A] 24 12 2x y [B] 48 7 2x y

[C] 48 12 2x y [D] 24 7 2x y

34. The product of ( )5ab and ( )−2 2 3a b is

[34]

[A] − 40 6 4a b [B] − 30 7 4a b

[C] − 30 6 4a b [D] − 40 7 4a b

Lesson 8-5: Division Properties ofExponents

Part 1: Dividing Powers with the Same Base

35. When − 9 5x is divided by − ≠3 03x x, , thequotient is

[35]

[A] 27 8x [B] − 3 2x

[C] − 27 15x [D] 3 2x

36. The quotient of − ≠155

08

2

xx

x, , is

[36]

[A] − 3 4x [B] −10 4x

[C] −10 6x [D] − 3 6x

37. The expression − ≠324

08

2

xx

x, , is equivalent

to

[37]

[A] − 8 6x [B] 8 4x

[C] 8 6x [D] − 8 4x

38. If x ≠ 0, then ( )xx

2 3

5 1000⋅ is equivalent to

[38]

[A] 1000x [B] 1000[C] 0 [D] 1000 + x

39. The expression 5 6 2

8

x yx y

is equivalent to

[39]

[A]2

5x

y [B] yx 25

[C] 3145 yx [D]14

35xy

40. The expression ( )bb b

n

n n

2 1 3

4 3

+

+⋅ is equivalent to

[40]

[A] b n−3 [B] bn

2[C] b n− +3 1 [D] bn



41. If 385 106. × is divided by 385 104× , theresult is

[41]

[A] 0 01. [B] 1

[C] 385 104. × [D] 385 1010. ×

42. What is the value of 6 3 103 10

8

4

. ××

in scientific

notation?

[42]

[A] 21 102. × [B] 21 10 4. × −

[C] 21 104. × [D] 21 10 2. × −

43. Two objects are 2 4 1020. × centimeters apart.A message from one object travels to theother at a rate of 12 105. × centimeters persecond. How many seconds does it take themessage to travel from one object to theother?

[43]

[A] 2 88 1025. × [B] 2 0 104. ×

[C] 12 1015. × [D] 2 0 1015. ×

Lesson 8-7: Exponential Functions

Part 1: Evaluating Exponential Functions

44. Which equation models the data in theaccompanying table?

[44]

[A] y x= +2 5 [B] y x= 2

[C] y x= 2 [D] y x= 5 2( )

45. What is the domain of f x x( ) = 2 ?

[45]

[A] x ≥ 0 [B] all real numbers

[C] all integers [D] x ≤ 0

46. A population of wolves in a county isrepresented by the equation P( ) ( . ) ,t t= 80 0 98where t is the number of years since 1998.Predict the number of wolves in thepopulation in the year 2008.

[46]

47. The height, f(x), of a bouncing ball after xbounces is represented by f ( ) ( . ) .x x= 80 05How many times higher is the first bouncethan the fourth bounce?

[47]

[A] 8 [B] 2 [C] 16 [D] 4

Part 2: Graphing Exponential Functions

48. The accompanying graph represents the valueof a bond over time.

Which type of function does this graph bestmodel?

[48]

[A] quadratic [B] exponential

[C] logarithmic [D] trigonometric



49. The strength of a medication over time isrepresented by the equation y x= −200 15( . ) ,where x represents the number of hours sincethe medication was taken and y represents thenumber of micrograms per millimeter left inthe blood. Which graph best represents thisrelationship?

[49]

[A] [B]

[C] [D]

50. Which equation best represents theaccompanying graph?

[50]

[A] y x= −2 [B] y x= 2

[C] y x= +2 2 [D] y x= −2

51. The graphs of the equations y x= 2 andy x a= − +2 intersect in Quadrant I for whichvalues of a?

[51]

[A] 0 1< <a [B] a ≥ 1[C] a > 1 [D] a < 1

52. On the accompanying grid, sketch the graphsof y x= 2 and 3 7 3y x= + over the interval− ≤ ≤3 4x . Identify and state the coordinatesof all points of intersection.

[52]



53. On the accompanying grid, solve thefollowing system of equations graphically:

y x x= − + +2 2 1y x= 2

[53]

Activity Lab P. 474: FittingExponential Curves to Data

54. A box containing 1,000 coins is shaken, andthe coins are emptied onto a table. Only thecoins that land heads up are returned to thebox, and then the process is repeated. Theaccompanying table shows the number oftrials and the number of coins returned to thebox after each trial.

Write an exponential regression equation,rounding the calculated values to the nearestten-thousandth.Use the equation to predict how many coinswould be returned to the box after the eighthtrial.

[54]

55. The table below, created in 1996, shows ahistory of transit fares from 1955 to 1995. Onthe accompanying grid, construct a scatterplot where the independent variable is years.State the exponential regression equation withthe coefficient and base rounded to thenearest thousandth. Using this equation,determine the prediction that should havebeen made for the year 1998, to the nearestcent.

[55]



56. The breaking strength, y, in tons, of steelcable with diameter d, in inches, is given inthe table below.

On the accompanying grid, make a scatterplot of these data. Write the exponentialregression equation, expressing the regressioncoefficients to the nearest tenth.

[56]

57. The accompanying table shows the averagesalary of baseball players since 1984. Usingthe data in the table, create a scatter plot onthe grid and state the exponential regressionequation with the coefficient and baserounded to the nearest hundredth.Using your written regression equation,estimate the salary of a baseball player in theyear 2005, to the nearest thousand dollars.

[57]



58. Jean invested $380 in stocks. Over the next5 years, the value of her investment grew, asshown in the accompanying table.

Write the exponential regression equation forthis set of data, rounding all values to twodecimal places.Using this equation, find the value of herstock, to the nearest dollar, 10 years after herinitial purchase.

[58]

Lesson 8-8: Exponential Growth andDecay

Part 1: Exponential Growth

59. On January 1, 1999, the price of gasoline was$1.39 per gallon. If the price of gasolineincreased by 0.5% per month, what was thecost of one gallon of gasoline, to the nearestcent, on January 1 one year later?

[59]

60. The Franklins inherited $3,500, which theywant to invest for their child's future collegeexpenses. If they invest it at 8.25% withinterest compounded monthly, determine thevalue of the account, in dollars, after 5 years.

Use the formula A P rn

nt= +( ) ,1 where A =

value of the investment after t years,P = principal invested, r = annual interestrate, and n = number of times compoundedper year.

[60]

Part 2: Exponential Decay

61. A used car was purchased in July 1999 for$11,900. If the car depreciates 13% of itsvalue each year, what is the value of the car,to the nearest hundred dollars, in July 2002?

[61]


Chapter 9: Polynomials and Factoring

Lesson 9-1: Adding and SubtractingPolynomials

Part 2: Adding and Subtracting Polynomials

1. The sum of 3 82x x+ + and x2 9− can beexpressed as

[1]

[A] 4 172x x+ − [B] 3 14x x+ −

[C] 4 14x x+ − [D] 4 12x x+ −

2. The sum of 3 4 22x x+ − and x x2 5 3− + is

[2]

[A] 4 12x x+ − [B] 4 12x x+ +

[C] 4 12x x− + [D] 4 12x x− −

3. The expression( ) ( )3 2 7 6 4 32 2x xy x xy+ + − − + is equivalentto

[3]

[A] 3 6 42x xy− − [B] − − +3 2 42x xy

[C] 3 2 42x xy− + [D] − + +3 6 42x xy

4. The expression ( ) ( )2 6 5 6 3 52 2x x x x+ + − + +is equivalent to

[4]

[A] − +4 32x x [B] − − +4 3 102x x

[C] 4 32x x− [D] 4 3 102x x+ −

5. The expression ( ) ( )x x x x2 25 2 6 7 3− − − − − −is equivalent to

[5]

[A] 7 12 52x x− − [B] 7 2 12x x+ +

[C] 7 2 12x x− + [D] 7 2 52x x+ −

6. When 3 2 52a a− + is subtracted froma a2 1+ − , the result is

[6]

[A] − + −2 3 62a a [B] − + +2 3 62a a

[C] 2 3 62a a− − [D] 2 3 62a a− +

7. If 2 4 62x x− + is subtracted from5 8 22x x+ − , the difference is

[7]

[A] 3 4 42x x+ + [B] 3 12 82x x+ −

[C] − + +3 4 42x x [D] − − +3 12 82x x

8. When 3 2 12x x− + is subtracted from2 7 52x x+ + , the result will be

[8]

[A] − + +x x2 5 6 [B] − + +x x2 9 4

[C] x x2 9 4− − [D] x x2 5 6+ +

9. When − + +2 4 22x x is subtracted fromx x2 6 4+ − , the result is

[9]

[A] 2 2 62x x− − [B] − + −x x2 10 2

[C] − − +3 2 62x x [D] 3 2 62x x+ −

10. If 2 62x x− + is subtracted from x x2 3 2+ − ,the result is

[10]

[A] − + −x x2 2 8 [B] − + −x x2 4 8

[C] x x2 4 8− + [D] x x2 2 8+ −



11. When 3 82x x− is subtracted from 2 32x x+ ,the difference is

[11]

[A] x x2 5− [B] − −x x2 11

[C] − +x x2 11 [D] − −x x2 5

12. When 3 7 62a a− + is subtracted from4 3 42a a− + , the result is

[12]

[A] 7 10 102a a− + [B] a a2 4 2+ −

[C] − − +a a2 4 2 [D] a a2 10 2− −

13. Subtract 5 7 62x x− − from 9 3 42x x+ − .

[13]

Lesson 9-2: Multiplying and Factoring

Part 2: Factoring a Monomial from a Polynomial

14. If 3x is one factor of 3 92x x− , what is theother factor?

[14]

[A] x − 3 [B] x x2 6−[C] 3x [D] x + 3

15. If one factor of 56 424 3 2 6x y x y− is 14 2 3x y ,what is the other factor?

[15]

[A] 4 32 2x y− [B] 4 32 3x y−

[C] 4 32 2x y xy− [D] 4 32 3x y xy−

Lesson 9-3: Multiplying Binomials

Part 1: Multiplying Two Binomials

16. What is the product of ( )c + 8 and ( ) ?c − 5

[16]

[A] c c2 3 40− − [B] c c2 13 40+ −

[C] c2 40− [D] c c2 3 40+ −

Lesson 9-4: Multiplying Special Cases

Part 1: Finding the Square of a Binomial

17. The expression ( )x − 6 2 is equivalent to

[17]

[A] x2 36− [B] x x2 12 36+ +

[C] x x2 12 36− + [D] x2 36+

18. The expression ( )a b2 2 2+ is equivalent to

[18]

[A] a a b b4 2 2 44+ + [B] a a b b4 2 2 4+ +

[C] a b4 4+ [D] a a b b4 2 2 42+ +

Lesson 9-5: Factoring Trinomials of theType x2+bx+c

Part 1: Factoring Trinomials

19. Which expression is a factor of x x2 2 15+ −

[19]

[A] (x - 3) [B] (x + 15)

[C] (x - 5) [D] (x + 3)



20. Which expression is a factor of n n2 3 54+ − ?

[20]

[A] n2 9+ [B] n − 9[C] n + 6 [D] n + 9

21. What are the factors of x x2 10 24− − ?

[21]

[A] (x + 12)(x - 2) [B] (x - 4)(x - 6)

[C] (x - 4)(x + 6) [D] (x - 12)(x + 2)

Lesson 9-6: Factoring Trinomials of theType ax2+bx+c

Part 1: Factoring ax2+bx+c

22. Factored completely, the expression2 12 542y y+ − is equivalent to

[22]

[A] (y + 6)(2y - 9) [B] (2y + 6)(y - 9)

[C] 2(y - 3)(y - 9) [D] 2(y + 9)(y - 3)

23. Factor completely: 3 15 422x x+ −

[23]

Lesson 9-7: Factoring Special Cases

Part 2: Factoring the Difference of Squares

24. What is a common factor of x2 9− andx x2 5 6− + ?

[24]

[A] x2 [B] x − 2[C] x + 3 [D] x − 3

25. One of the factors of 4 92x − is

[25]

[A] (x - 3) [B] (4x - 3)

[C] (2x + 3) [D] (x + 3)

26. Expressed in factored form, the binomial4 92 2a b− is equivalent to

[26]

[A] (2a - 9b)(2a + b) [B] (4a - 3b)(a + 3b)

[C] (2a - 3b)(2a - 3b)

[D] (2a + 3b)(2a - 3b)

27. Factor completely: 3 272x −

[27]

[A] ( )( )3 3 9x x+ − [B] 3 3 3( )( )x x+ −

[C] 3 272( )x − [D] 3 3 2( )x −

28. Written in simplest factored form, thebinomial 2 502x − can be expressed as

[28]

[A] 2(x - 5)(x + 5) [B] 2x(x - 50)

[C] (x - 5)(x + 5) [D] 2(x- 5)(x - 5)

29. Factor completely: 5 802n −

[29]

30. Factor completely: 3 272ax a−

[30]


Chapter 10: Quadratic Equations and Functions

Lesson 10-1: Exploring QuadraticGraphs

Part 1: Graphing y=ax2

1. Which quadratic function is shown in theaccompanying graph?

[1]

[A] y x= − 12

2 [B] y x= 12

2

[C] y x= −2 2 [D] y x= 2 2

2. What is the total number of points ofintersection for the graphs of the equationsy x= 2 and y x= − 2 ?

[2]

[A] 1 [B] 2 [C] 0 [D] 3

3. Which is an equation of the line of symmetryfor the parabola in the accompanyingdiagram?

[3]

[A] x = 4 [B] x = 3

[C] y = 3 [D] x = 2

4. For which quadratic equation is the axis ofsymmetry x = 3?

[4]

[A] y x x= − + +2 6 2 [B] y x x= + +2 3

[C] y x x= + +2 6 3 [D] y x x= − + +2 3 5



Part 1: Graphing y=ax2+c

5. Which equation is best represented by theaccompanying graph?

[5]

[A] y x= +6 1 [B] y x= 6 2

[C] y x= − +2 1 [D] y x= 6

6. What is one solution of the accompanyingsystem of equations?

y xy x

= − +

= − +

2

2

505 3.

[6]

[A] (-2,1) [B] (0,5)

[C] (0,3) [D] (3,5)

Lesson 10-2: Quadratic Functions

Part 1: Graphing y=ax2+bx+c

7. The height of a golf ball hit into the air ismodeled by the equation ,4816 2 tth +−=where h represents the height, in feet, and trepresents the number of seconds that havepassed since the ball was hit. What is theheight of the ball after 2 seconds?

[7]

[A] 64 ft [B] 80 ft [C] 32 ft [D] 16 ft

8. Amy tossed a ball in the air in such a way thatthe path of the ball was modeled by theequation y x x= − +2 6 . In the equation, yrepresents the height of the ball in feet and xis the time in seconds.a Graph y x x= − +2 6 for 0 6≤ ≤x on thegrid provided below.

b At what time, x, is the ball at its highestpoint?

[8]



9. An architect is designing a museumentranceway in the shape of a parabolic archrepresented by the equation y x x= − +2 20 ,where 0 20≤ ≤x and all dimensions areexpressed in feet. On the accompanying setof axes, sketch a graph of the arch anddetermine its maximum height, in feet.

[9]

10. Tom throws a ball into the air. The balltravels on a parabolic path represented by theequation h t t= − +8 402 , where h is theheight, in feet, and t is the time, in seconds.a On the accompanying set of axes, graph theequation from t= 0 to t = 5 seconds, includingall integral values of t from 0 to 5.

b What is the value of t at which h has itsgreatest value?

[10]



11. An arch is built so that it is 6 feet wide at thebase. Its shape can be re presented by aparabola with the equation y x x= − +2 122 ,where y is the height of the arch.a Graph the parabola from x = 0 to x = 6 onthe grid below.

b Determine the maximum height, y, of thearch.

[11]

12. A small rocket is launched from a height of72 feet. The height of the rocket in feet, h, isrepresented by the equationh( ) ,t t t= − + +16 64 722 where t = time, inseconds. Graph this equation on theaccompanying grid.Use your graph to determine the number ofseconds that the rocket will remain at orabove 100 feet from the ground. [Only agraphic solution can receive full credit.]

[12]



13. Which is an equation of the parabola shownin the accompanying diagram?

[13]

[A] y x x= − + +2 2 3 [B] y x x= − − +2 2 3

[C] y x x= − +2 2 3 [D] y x x= + +2 2 3

14. The graph of a quadratic equation is shown inthe accompanying diagram. The scale on theaxes is a unit scale. Write an equation of thisgraph in standard form.

[14]

15. An archer shoots an arrow into the air suchthat its height at any time, t, is given by thefunction h t t kt( ) .= − + +16 32 If themaximum height of the arrow occurs at timet = 4 , what is the value of k?

[15]

[A] 64 [B] 4 [C] 8 [D] 128

16. What is the turning point, or vertex, of theparabola whose equation is ?163 2 −+= xxy

[16]

[A] (3,44) [B] (1,8)

[C] (-3,8) [D] (-l,-4)

17. What is the minimum point of the graph ofthe equation y x x= + +2 8 92 ?

[17]

[A] (2,17) [B] (-2,-15)

[C] (-2,1) [D] (2,33)

18. The height of an object, h(t), is determined bythe formula h t t t( ) = − +16 2562 , where t istime, in seconds. Will the object reach amaximum or a minimum? Explain or showyour reasoning.

[18]

19. Vanessa throws a tennis ball in the air. Thefunction h t t t( ) = − + +16 45 72 represents thedistance, in feet, that the ball is from theground at any time t. At what time, to thenearest tenth of a second, is the ball at itsmaximum height?

[19]



20. The height, h, in feet, a ball will reach whenthrown in the air is a function of time, t, inseconds, given by the equationh t t t( ) = − + +16 30 62 . Find, to the nearesttenth, the maximum height, in feet, the ballwill reach.

[20]

21. When a current, I, flows through a givenelectrical circuit, the power, W, of the circuitcan be determined by the formulaW I I= −120 12 2 . What amount of current, I,supplies the maximum power, W?

[21]

22. The equation W I I= −120 12 2 represents thepower (W), in watts, of a 120-volt circuithaving a resistance of 12 ohms when a current(I) is flowing through the circuit. What is themaximum power, in watts, that can bedelivered in this circuit?

[22]

23. A baseball player throws a ball from theoutfield toward home plate. The ball's heightabove the ground is modeled by the equationy x x= − + +16 48 62 where y representsheight, in feet, and x represents time, inseconds. The ball is initially thrown from aheight of 6 feet.How many seconds after the ball is thrownwill it again be 6 feet above the ground?What is the maximum height, in feet, that theball reaches? [The use of the accompanyinggrid is optional.]

[23]



24. A rock is thrown vertically from the groundwith a velocity of 24 meters per second, and itreaches a height of 2 24 4 9 2+ −t t. after tseconds. How many seconds after the rock isthrown will it reach maximum height, andwhat is the maximum height the rock willreach, in meters? How many seconds afterthe rock is thrown will it hit the ground?Round your answers to the nearest hundredth.[Only an algebraic or graphic solution will beaccepted.]

[24]

25. The path of a rocket fired during a fireworksdisplay is given by the equations( ) ,t t t= −64 16 2 where t is the time, inseconds, and s is the height, in feet. What isthe maximum height, in feet, the rocket willreach? In how many seconds will the rockethit the ground? [The grid is optional.]

[25]



Lesson 10-3: Solving QuadraticEquations

Part 1: Solving Quadratic Equations by Graphing

26. Greg is in a car at the top of a roller-coasterride. The distance, d, of the car from theground as the car descends is determined bythe equation d t= −144 16 2 , where t is thenumber of seconds it takes the car to traveldown to each point on the ride. How manyseconds will it take Greg to reach the ground?For an algebraic solution show your workhere.For a graphic solution show your work here.

[26]

27. An acorn falls from the branch of a tree to theground 25 feet below. The distance, S, theacorn is from the ground as it falls isrepresented by the equationS t t( ) ,= − +16 252 where t represents time, inseconds. Sketch a graph of this situation onthe accompanying grid.Calculate, to the nearest hundredth of asecond, the time the acorn will take to reachthe ground.

[27]

Part 2: Solving Quadratic Equations Using SquareRoots

28. What is the solution set of the equation3 482x = ?

[28]

[A] {4,-4} [B] {2,8}

[C] {-2,-8} [D] {4,4}



Lesson 10-4: Factoring to SolveQuadratic Equations

Part 1: Solving Quadratic Equations

29. The larger root of the equation( )( )x x+ − =4 3 0 is

[29]

[A] -3 [B] 4 [C] 3 [D] -4

30. One of the roots of the equationx x2 3 18 0+ − = is 3. What is the other root?

[30]

[A] 6 [B] 15 [C] -21 [D] -6

31. What is the solution set of the equationx x2 5 0− = ?

[31]

[A] {0} [B] {0,5} [C] {0,-5} [D] {5}

32. The solution set for the equationx x2 2 15 0− − = is

[32]

[A] {5,-3} [B] {5,3}

[C] {-5,3} [D] {-5,-3}

33. The solution set of the equationx x2 4 12 0− − = is

[33]

[A] {-6,2} [B] {-3,4}

[C] {-2,6} [D] {-4,3}

34. What is the solution set of m m2 3 10 0− − = ?

[34]

[A] {3,-10} [B] {5,-2}

[C] {2,-5} [D] {3,10}

35. What is the solution set of the equationx x2 5 24 0− − = ?

[35]

[A] {3,-8} [B] {3,8}

[C] {-3,-8} [D] {-3,8}

36. What is the solution set for the equationx x2 5 6 0− + =

[36]

[A] {-6,1} [B] {6,-1}

[C] {2,3} [D] {-2,-3}

37. What is the solution set of the equationx x2 11 28 0+ + = ?

[37]

[A] {-7,-4} [B] {-3,-4}

[C] {-7,4} [D] {3,4}

38. Solve for x: x x2 3 40 0+ − =

[38]

39. Solve for x: x x2 3 28 0+ − =

[39]

40. Solve for x: x x2 2 24 0+ − =

[40]

41. The solution set for the equation 652 =− xxis

[41]

[A] {2,-3} [B] {-2,3}

[C] {1,-6} [D] {-1,6}



42. If (x - 4) is a factor of x x w2 0− − = , then thevalue of w is

[42]

[A] -3 [B] 3 [C] 12 [D] -12

43. When Albert flips open his mathematicstextbook, he notices that the product of thepage numbers of the two facing pages that hesees is 156. Which equation could be used tofind the page numbers that Albert is lookingat?

[43]

[A] x x( )+ =1 156

[B] ( ) ( )x x+ + + =1 2 156

[C] ( )( )x x+ + =1 3 156

[D] x x+ + =( )1 156

44. Three brothers have ages that are consecutiveeven integers. The product of the first andthird boys' ages is 20 more than twice thesecond boy's age. Find the age of each of thethree boys.

[44]

45. Tamara has two sisters. One of the sisters is 7years older than Tamara. The other sister is 3years younger than Tamara. The product ofTamara's sisters' ages is 24. How old isTamara?

[45]

46. Find three consecutive odd integers such thatthe product of the first and the second exceedsthe third by 8.

[46]

47. If the equation x kx2 36 0− − = has x = 12 asone root, what is the value of k?

[47]

[A] -3 [B] -9 [C] 3 [D] 9

48. One root of the equation 2 15 02x x− − = is

[48]

[A] − 3 [B] 3 [C] 32

[D] 52

49. What is the solution set of the equation3 34 24 02x x− − = ?

[49]

[A] { , }−12 23

[B] { , }− 23

12

[C] { , }−2 6 [D] { , }−6 2

50. A ball is thrown straight up at an initialvelocity of 54 feet per second. The height ofthe ball t seconds after it is thrown is given bythe formula h t t t( ) .= −54 12 2 How manyseconds after the ball is thrown will it returnto the ground?

[50]

[A] 6 [B] 4 [C] 4.5 [D] 9.2

51. For which equation is the sum of the rootsequal to the product of the roots?

[51]

[A] x x2 8 4 0− − = [B] x x2 4 4 0− + =

[C] x x2 3 6 0+ − = [D] x x2 1 0+ + =



Extension P. 577: Rational Exponents

52. The value of ( )3

27

0

23

1− is

[52]

[A] − 9 [B] 9 [C] − 19

[D] 19

53. The expression 4 212 3⋅ is equal to

[53]

[A] 16 [B] 432 [C] 8

32 [D] 4

54. The expression 3

3

13

23

− is equivalent to

[54]

[A] 1 [B] 3 [C] 133

[D] 3

55. If x is a positive integer, 412x is equivalent to

[55]

[A] 2x

[B] 4 1x

[C] 2x [D] 4 x

56. The expression b b−

>32 0, , is equivalent to

[56]

[A] 23 )( b [B]23 )(

1b

[C]3)(

1b

[D] − ( )b 3

57. The volume of a soap bubble is representedby the equation V A= 0 094 3. , where Arepresents the surface area of the bubble.Which expression is also equivalent to V?

[57]

[A] 0 094 6. A [B] 0 09432. A

[C] ( . )0 094 312A [D] 0 094

23. A

58. The expression 16 6 44 a b is equivalent to

[58]

[A] 232a b [B] 4

32a b

[C] 4 2a b [D] 2 2a b

59. When simplified, the expression ( )( )m m4312

−

is equivalent to

[59]

[A] 5 4−m [B] 3 2−m

[C] 4 3m [D] 6 5m

60. Find the value of ( ) ( )x x+ + +−

2 1023 when

x = 7.

[60]

61. If ( ) ,aa

x23

2

1= what is the value of x?

[61]

[A] 2 [B] -1 [C] 1 [D] -3



62. If f ( ) ,x x=− 3

2 then f ( )14

is equal to

[62]

[A] − 4 [B] − 18

[C] − 2 [D] 8

63. Meteorologists can determine how long astorm lasts by using the function

t d d( ) . ,= 0 0732 where d is the diameter of the

storm, in miles, and t is the time, in hours. Ifthe storm lasts 4.75 hours, find its diameter,to the nearest tenth of a mile.

[63]

Lesson 10-6: Using the QuadratricFormula

Part 1: Using the Quadratic Formula

64. If the sum of the roots of x x2 3 5+ − is addedto the product of its roots, the result is

[64]

[A] -2 [B] 15 [C] -8 [D] -15

65. Matt’s rectangular patio measures 9 feet by12 feet. He wants to increase the patio’sdimensions so its area will be twice the area itis now. He plans to increase both the lengthand the width by the same amount, x. Find x,to the nearest hundredth of a foot.

[65]

66. Barb pulled the plug in her bathtub and itstarted to drain. The amount of water in thebathtub as it drains is represented by theequation L t t= − − +5 8 1202 , where Lrepresents the number of liters of water in thebathtub and t represents the amount of time,in minutes, since the plug was pulled.How many liters of water were in the bathtubwhen Barb pulled the plug? Show yourreasoning.Determine, to the nearest tenth of a minute,the amount of time it takes for all the water inthe bathtub to drain.

[66]



Lesson 10-7: Using the Discriminant

67. Which graph represents a quadratic functionwith a negative discriminant?

[67]

[A]

[B]

[C]

[D]

Activity Lab P. 612-613: Surface Areaand Volumes

68. Which diagram represents the figure with thegreatest volume?

[68]

[A] [B]

[C] [D]

69. A storage container in the shape of a rightcircular cylinder is shown in theaccompanying diagram.

What is the volume of this container, to thenearest hundredth?

[69]

[A] 25133. in3 [B] 12566. in3

[C] 502 65. in3 [D] 5655. in3

70. A cardboard box has length x − 2, widthx +1, and height 2x.a Write an expression, in terms of x, torepresent the volume of the box.b If x = 8 centimeters, what is the number ofcubic centimeters in the volume of the box?

[70]



71. If the length of a rectangular prism isdoubled, its width is tripled, and its heightremains the same, what is the volume of thenew rectangular prism?

[71]

[A] triple the original volume

[B] nine times the original volume

[C] six times the original volume

[D] double the original volume

72. A box in the shape of a cube has a volume of64 cubic inches. What is the length of a sideof the box?

[72]

[A] 16 in [B] 4 in

[C] 8 in [D] 21 3. in

73. The volume of a cube is 64 cubic inches. Itstotal surface area, in square inches, is

[73]

[A] 96 [B] 16 [C] 48 [D] 576

74. The volume of a rectangular pool is 1,080cubic meters. Its length, width, and depth arein the ratio 10:4:1. Find the number of metersin each of the three dimensions of the pool.

[74]

75. A fish tank with a rectangular base has avolume of 3,360 cubic inches. The length andwidth of the tank are 14 inches and 12 inches,respectively. Find the height, in inches, of thetank.

[75]

76. A planned building was going to be 100 feetlong, 75 feet deep, and 30 feet high. Theowner decides to increase the volume of thebuilding by 10% without changing thedimensions of the depth and the height. Whatwill be the new length of this building?

[76]

[A] 110 ft [B] 112 ft

[C] 106 ft [D] 108 ft

77. The dimensions of a brick, in inches, are 2 by4 by 8. How many such bricks are needed tohave a total volume of exactly 1 cubic foot?

[77]

78. Tina's preschool has a set of cardboardbuilding blocks, each of which measures 9inches by 9 inches by 4 inches. How many ofthese blocks will Tina need to build a wall 4inches thick, 3 feet high, and 12 feet long?

[78]

79. Tracey has two empty cube-shaped containerswith sides of 5 inches and 7 inches, as shownin the accompanying diagram. She fills thesmaller container completely with water andthen pours all the water from the smallercontainer into the larger container. Howdeep, to the nearest tenth of an inch, will thewater be in the larger container?

[79]



80. As shown in the accompanying diagram, thelength, width, and height of Richard's fishtank are 24 inches, 16 inches, and 18 inches,respectively. Richard is filling his fish tankwith water from a hose at the rate of 500cubic inches per minute. How long will ittake, to the nearest minute, to fill the tank to adepth of 15 inches?

[80]

81. In the accompanying diagram, a rectangularcontainer with the dimensions 10 inches by15 inches by 20 inches is to be filled withwater, using a cylindrical cup whose radius is2 inches and whose height is 5 inches. Whatis the maximum number of full cups of waterthat can be placed into the container withoutthe water overflowing the container?

[81]

82. Tamika has a hard rubber ball whosecircumference measures 13 inches. She wantsto box it for a gift but can only find cube-shaped boxes of sides 3 inches, 4 inches, 5inches, or 6 inches. What is the smallest boxthat the ball will fit into with the top on?

[82]

83. Deborah built a box by cutting 3-inch squaresfrom the corners of a rectangular sheet ofcardboard, as shown in the accompanyingdiagram, and then folding the sides up. Thevolume of the box is 150 cubic inches, andthe longer side of the box is 5 inches morethan the shorter side. Find the number ofinches in the shorter side of the original sheetof cardboard.

[83]

84. A rectangular piece of cardboard is to beformed into an uncovered box. The piece ofcardboard is 2 centimeters longer than it iswide. A square that measures 3 centimeterson a side is cut from each corner. When thesides are turned up to form the box, itsvolume is 765 cubic centimeters. Find thedimensions, in centimeters, of the originalpiece of cardboard.

[84]



85. Denise is designing a storage box in the shapeof a cube. Each side of the box has a lengthof 10 inches. She needs more room anddecides to construct a larger box in the shapeof a cube with a volume of 2,000 cubicinches. By how many inches, to the nearesttenth, should she increase the length of eachside of the original box?

[85]


Chapter 11: Radical Expressions and Equations

Lesson 11-1: Simplifying Radicals

Part 1: Simplifying Radical Expressions InvolvingProducts

1. The expression 50 can be simplified to

[1]

[A] 5 10 [B] 2 25

[C] 5 2 [D] 25 2

2. When 72 is expressed in simplest a bform, what is the value of a?

[2]

[A] 3 [B] 8 [C] 6 [D] 2

3. Simplify: 50 2 4r s

[3]

4. If a > 0, then 9 162 2a a+ equals

[4]

[A] 7a [B] 5a [C] 7a [D] 5 a

5. Expressed in simplest radical form, theproduct of 6 15⋅ is

[5]

[A] 3 10 [B] 3 15

[C] 90 [D] 9 10

6. If x > 0, the expression ( )( )x x2 isequivalent to

[6]

[A] x2 2 [B] x 2

[C] 2x [D] 2x

Part 2: Simplifying Radical Expressions InvolvingQuotients

7. The expression 6 203 5

is equivalent to

[7]

[A] 3 15 [B] 2 15 [C] 4 [D] 8

Lesson 11-2: Operations with RadicalExpressions

Part 1: Simplifying Sums and Differences

8. The sum of 18 and 72 is

[8]

[A] 9 2 [B] 3 10

[C] 6 3 [D] 90

9. The sum of 75 and 3 is

[9]

[A] 15 [B] 6 3 [C] 78 [D] 18

10. The expression 27 12+ is equivalent to

[10]

[A] 13 3 [B] 39

[C] 5 3 [D] 5 6


[11]

[A] 6 [B] 82 [C] 9 2 [D] 18




[12]

[A] 91 [B] 5 7

[C] 6 7 [D] 13 7

13. What is the sum of 75 and ?283

[13]

[A] 79 [B] 358

[C] 760 [D] 711

14. What is the sum of 50 and 32 ?

[14]

[A] 82 [B] 2

[C] 9 2 [D] 20 20

15. The expression 2 50 2− is equivalent to

[15]

[A] 10 [B] 49 2

[C] 2 48 [D] 9 2

16. The expression 90 40 8 18⋅ − ⋅simplifies to

[16]

[A] 22.9 [B] 864 [C] 3,456 [D] 48

Part 2: Simplifying Products and Quotients

17. Which expression is equivalent to 43 2+

?

[17]

[A] 12 4 27

− [B] 12 4 211+

[C] 12 4 211− [D] 12 4 2

7+

18. The expression 123 3+

is equivalent to

[18]

[A] 6 2 3− [B] 4 2 3−

[C] 2 3+ [D] 12 3−

19. The expression 72 3−

is equivalent to

[19]

[A] 14 7 3− [B] 14 37+

[C] 14 7 3+ [D] 2 37

+


is equivalent to

[20]

[A] 3 27

+ [B] 3 2+

[C] 21 27+ [D] 3 2−




is equivalent to

[21]

[A]8135

−+ [B]

12135 +

[C]12

135−+ [D]

8135 +


is equivalent to

[22]

[A] 2 5 1319

( )− [B] 2 5 1319

( )+

[C] 5 133

+ [D] 5 133

−


is equivalent to

[23]

[A] − +3 52

[B] 3 52+

[C] 3 52− [D] − −3 5

2


is equivalent to

[24]

[A] 54

[B] 5 5 54

−

[C] 5 5 56

− [D] 5 5 54

+

25. The fraction 36 1−

is equivalent to

[25]

[A] 3 6 35

+ [B] 3 6 35

−

[C] 3 6 3− [D] 3 6 3+

26. Which expression is equal to 2 32 3

+−

?

[26]

[A] 1 4 37

− [B] 7 4 37

+

[C] 7 4 3+ [D] 1 4 3−

27. Which expression represents the sum of13

12

+ ?

[27]

[A] 3 23+ [B] 3 2

2+

[C] 25

[D] 2 3 3 26+

Lesson 11-3: Solving RadicalEquations

Part 1: Solving Radical Equations

28. If 2 1 2 5x − + = , then x is equal to

[28]

[A] 2 [B] 1 [C] 5 [D] 4



29. What is the solution of the equation2 3 3 6x − − = ?

[29]

[A] 3 [B] 6 [C] 39 [D] 42

30. What is the solution set of the equationx x= −2 2 3 ?

[30]

[A] {2,6} [B] {2} [C] {6} [D] { }

31. Solve for all values of q that satisfy theequation 3 7 3q q+ = + .

[31]

32. A wrecking ball suspended from a chain is atype of pendulum. The relationship betweenthe rate of speed of the ball, R, the mass of theball, m, the length of the chain, L, and the

force, F, is R mLF

= 2π . Determine the

force, F, to the nearest hundredth, when L =12, m = 50, and R = 0.6.

[32]

33. The lateral surface area of a right circularcone, s, is represented by the equations r r h= +π 2 2 , where r is the radius of thecircular base and h is the height of the cone.If the lateral surface area of a large funnel is236.64 square centimeters and its radius is4.75 centimeters, find its height, to thenearest hundredth of a centimeter.

[33]

34. The equation V C= +20 273 relates speedof sound, V, in meters per second, to airtemperature, C, in degrees Celsius. What isthe temperature, in degrees Celsius, when thespeed of sound is 320 meters per second?[The use of the accompanying grid isoptional.]

[34]



35. The number of people, y, involved inrecycling in a community is modeled by thefunction y x= +90 3 400 , where x is thenumber of months the recycling plant hasbeen open.Construct a table of values, sketch thefunction on the grid, and find the number ofpeople involved in recycling exactly 3 monthsafter the plant opened.After how many months will 940 people beinvolved in recycling?

[35]

36. The path of a rocket is represented by theequation y x= −25 2 . The path of a missiledesigned to intersect the path of the rocket is

represented by the equation x y= 32

. The

value of x at the point of intersection is 3.What is the corresponding value of y?

[36]

[A] -2 [B] 4 [C] -4 [D] 2

Part 2: Solving Equations with Extraneous Solutions

37. The solution set of the equation x x+ =6 is

[37]

[A] {3} [B] { } [C] {-2} [D] {-2,3}

38. What is the solution set of the equation9 10x x+ =

[38]

[A] {10} [B] {10, -1}

[C] {9} [D] {-1}

39. Solve algebraically: x x+ + =5 1

[39]

40. Solve algebraically for x: 3 1 1x x+ + =

[40]



Extension P. 636-637: StandardDeviation

41. Jean's scores on five mathematics tests were98, 97, 99, 98, and 96. Her scores on fiveEnglish tests were 78, 84, 95, 72, and 79.Which statement is true about the standarddeviations for the scores?

[41]

[A] More information is needed to determinethe relationship between the standarddeviations.

[B] The standard deviation for the mathscores is greater than the standarddeviation for the English scores.

[C] The standard deviations for both sets ofscores are equal.

[D] The standard deviation for the Englishscores is greater than the standarddeviation for the math scores.

42. On a nationwide examination, the AdamsSchool had a mean score of 875 and astandard deviation of 12. The Boswell Schoolhad a mean score of 855 and a standarddeviation of 20. In which school was theregreater consistency in the scores? Explainhow you arrived at your answer.

[42]

43. The term “snowstorms of note” applies to allsnowfalls over 6 inches. The snowfallamounts for snowstorms of note in Utica,New York, over a four-year period are asfollows: 7.1, 9.2, 8.0, 6.1, 14.4, 8.5, 6.1, 6.8,7.7, 21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6What are the mean and population standarddeviation for these data, to the nearesthundredth?

[43]

[A] mean = 9.46; standard deviation = 3.85

[B] mean = 9.45; standard deviation = 3.74

[C] mean = 9.46; standard deviation = 3.74

[D] mean = 9.45; standard deviation = 3.85

44. The number of children of each of the first 41United States presidents is given in theaccompanying table. For this population,determine the mean and the standarddeviation to the nearest tenth.How many of these presidents fall within onestandard deviation of the mean?

[44]



45. Conant High School has 17 students on itschampionship bowling team. Each studentbowled one game. The scores are listed in theaccompanying table.

Find, to the nearest tenth, the populationstandard deviation of these scores. Howmany of the scores fall within one standarddeviation of the mean?

[45]

46. Beth's scores on the six Earth science testsshe took this semester are 100, 95, 55, 85, 75,and 100. For this population, how manyscores are within one standard deviation ofthe mean?

[46]

47. From 1984 to 1995, the winning scores for agolf tournament were 276, 279, 279, 277,278, 278, 280, 282, 285, 272, 279, and 278.Using the standard deviation for the sample,Sx , find the percent of these winning scoresthat fall within one standard deviation of themean.

[47]

48. An electronics company produces aheadphone set that can be adjusted toaccommodate different-sized heads. Researchinto the distance between the top of people'sheads and the top of their ears produced thefollowing data, in inches:4.5, 4.8, 6.2, 5.5, 5.6, 5.4, 5.8, 6.0, 5.8, 6.2,4.6, 5.0, 5.4, 5.8The company decides to design theirheadphones to accommodate three standarddeviations from the mean. Find, to the nearesttenth, the mean, the standard deviation, andthe range of distances that must beaccommodated.

[48]

49. On a standardized test, a score of 86 fallsexactly 1.5 standard deviations below themean. If the standard deviation for the test is2, what is the mean score for this test?

[49]

[A] 87.5 [B] 89 [C] 84.5 [D] 84

Lesson 11-4: Graphing Square RootFunctions

Part 1: Graphing Square Root Functions

50. What is the domain of h x x x( ) ?= − −2 4 5

[50]

[A] { }x x− ≤ ≤5 1

[B] { }x x x≥ ≤ −5 1or

[C] { }x x x≥ ≤ −1 5or

[D] { }x x− ≤ ≤1 5



51. Which statement is true for all real numbervalues of x?

[51]

[A] x x2 = [B] |x - 1| > 0

[C] x x2 = [D] |x - 1| > (x - 1)

52. The formula S t= +20 273 is used todetermine the speed of sound, S, in meters persecond, near Earth's surface, where t is thesurface temperature, in degrees Celsius.Which graph best represents this function?

[52]

[A] [B]

[C] [D]

53. What is the axis of symmetry of the graph ofthe equation x y= 2 ?

[53]

[A] y-axis [B] x-axis

[C] line y = -x [D] line y = x

Lesson 11-5: Trigonometric Ratios

Part 1: Finding Trigonometric Ratios

54. Which ratio represents cos A in theaccompanying diagram of ΔABC ?

[54]

[A] 135

[B] 125

[C] 1213

[D] 513

55. In the accompanying diagram of right triangleABC, AB = 8, BC = 15, AC = 17, andm ABC∠ = 90.

What is tan ?∠C

[55]

[A] 817

[B] 815

[C] 1715

[D] 1517



56. A surveyor needs to determine the distanceacross the pond shown in the accompanyingdiagram. She determines that the distancefrom her position to point P on the southshore of the pond is 175 meters and the anglefrom her position to point X on the northshore is 32°. Determine the distance, PX,across the pond, rounded to the nearest meter.

[56]

57. A 10-foot ladder is to be placed against theside of a building. The base of the laddermust be placed at an angle of 72° with thelevel ground for a secure footing. Find, to thenearest inch, how far the base of the laddershould be from the side of the building andhow far up the side of the building the ladderwill reach.

[57]

58. Find, to the nearest tenth of a foot, the heightof the tree represented in the accompanyingdiagram.

[58]

59. In the accompanying diagram, a ladderleaning against a building makes an angle of58° with level ground. If the distance fromthe foot of the ladder to the building is 6 feet,find, to the nearest foot, how far up thebuilding the ladder will reach.

[59]

60. Draw and label a diagram of the path of anairplane climbing at an angle of 11° with theground. Find, to the nearest foot, the grounddistance the airplane has traveled when it hasattained an altitude of 400 feet.

[60]



61. In the accompanying diagram, x representsthe length of a ladder that is leaning against awall of a building, and y represents thedistance from the foot of the ladder to thebase of the wall. The ladder makes a 60°angle with the ground and reaches a point onthe wall 17 feet above the ground. Find thenumber of feet in x and y.

[61]

62. As shown in the accompanying diagram, aladder is leaning against a vertical wall,making an angle of 70° with the ground andreaching a height of 10.39 feet on the wall.Find, to the nearest foot, the length of theladder.Find, to the nearest foot, the distance from thebase of the ladder to the wall.

[62]

Lesson 11-6: Angles of Elevation andDepression

Part 1: Solving Problems Using TrigonometricRatios

63. The angle of elevation from a point 25 feetfrom the base of a tree on level ground to thetop of the tree is 30°. Which equation can beused to find the height of the tree?

[63]

[A] cos3025

° = x [B] tan 3025

° = x

[C] sin 3025

° = x [D] 30 252 2 2+ = x

64. Joe is holding his kite string 3 feet above theground, as shown in the accompanyingdiagram. The distance between his hand anda point directly under the kite is 95 feet. Ifthe angle of elevation to the kite is 50°, findthe height, h, of his kite, to the nearest foot.

[64]



65. From a point on level ground 25 feet from thebase of a tower, the angle of elevation to thetop of the tower is 78°, as shown in theaccompanying diagram. Find the height of thetower, to the nearest tenth of a foot.

[65]

66. A tree casts a shadow that is 20 feet long.The angle of elevation from the end of theshadow to the top of the tree is 66°.Determine the height of the tree, to thenearest foot.

[66]

67. A ship on the ocean surface detects a sunkenship on the ocean floor at an angle ofdepression of 50°. The distance between theship on the surface and the sunken ship on theocean floor is 200 meters. If the ocean flooris level in this area, how far above the oceanfloor, to the nearest meter, is the ship on thesurface?

[67]

68. A person measures the angle of depressionfrom the top of a wall to a point on theground. The point is located on level ground62 feet from the base of the wall and the angleof depression is 52°. How high is the wall, tothe nearest tenth of a foot?

[68]

Extension P. 654: Finding Angles inRight Triangles

69. A person standing on level ground is 2,000feet away from the foot of a 420-foot-tallbuilding, as shown in the accompanyingdiagram. To the nearest degree, what is thevalue of x?

[69]

70. Ron and Francine are building a ramp forperforming skateboard stunts, as shown in theaccompanying diagram. The ramp is 7 feetlong and 3 feet high. What is the measure ofthe angle, x, that the ramp makes with theground, to the nearest tenth of a degree?

[70]



71. As seen in the accompanying diagram, aperson can travel from New York City toBuffalo by going north 170 miles to Albanyand then west 280 miles to Buffalo.

a If an engineer wants to design a highwayto connect New York City directly to Buffalo,at what angle, x, would she need to build thehighway? Find the angle to the nearestdegree.b To the nearest mile, how many mileswould be saved by traveling directly fromNew York City to Buffalo rather than bytraveling first to Albany and then to Buffalo?

[71]

72. In the accompanying diagram, the base of a15-foot ladder rests on the ground 4 feet froma 6-foot fence.

a If the ladder touches the top of the fenceand the side of a building, what angle, to thenearest degree, does the ladder make with theground?b Using the angle found in part a, determinehow far the top of the ladder reaches up theside of the building, to the nearest foot.

[72]



73. The accompanying diagram shows a flagpolethat stands on level ground. Two cables, rand s, are attached to the pole at a point 16feet above the ground. The combined lengthof the two cables is 50 feet. If cable r isattached to the ground 12 feet from the baseof the pole, what is the measure of the angle,x, to the nearest degree, that cable s makeswith the ground?

[73]


Chapter 12: Rational Expressions and Functions

Lesson 12-1: Graphing RationalFunctions

Part 1: Graphing Rational Functions

1. What is the total number of points ofintersection of the graphs of the equationsxy = 12 and y x= − +2 3?

[1]

[A] 4 [B] 3 [C] 1 [D] 2

2. For which value of x is the expression xx

−+

72

undefined?

[2]

[A] 0 [B] 2 [C] -2 [D] 7

3. For which value of x is the expression 3 64

xx

−−

undefined?

[3]

[A] 0 [B] 4 [C] -4 [D] 2

4. For which value of x will the fraction 32 4x +

be undefined?

[4]

[A] -2 [B] -4 [C] 2 [D] 0

5. For which value of x is the expression 32x −

undefined?

[5]

[A] 3 [B] 2 [C] 0 [D] -2

6. Which expression is undefined when w = 3?

[6]

[A] ww w

+−

132 [B] 3

3 2

ww

[C] w ww

2 25+ [D] w

w−+

31

Lesson 12-2: Simplifying RationalExpressions

Part 1: Simplifying Rational Expressions

7. If x ≠ 0, the expression x xx

2 2+ is equivalent

to

[7]

[A] 3x [B] 4 [C] x + 2 [D] 2

8. Which polynomial is the quotient of6 9 3

3

3 2x x xx

+ + ?

[8]

[A] 2 3x + [B] 6 92x x+

[C] 2 3 12x x+ + [D] 2 32x x+

9. Simplify: 9 159 25

2

2 2

x xyx y

−−

[9]

10. Simplify: x xx

2

2

6 525

+ +−

[10]



Lesson 12-3: Multiplying and DividingRational Expressions

Part 1: Multiplying Rational Expressions

11. If the length of a rectangular garden is

represented by x xx x

2

2

22 15+

+ − and its width is

represented by 2 62 4

xx

−+

, which expression

represents the area of the garden?

[11]

[A] x [B] xx + 5

[C] x xx

2 22 5

++( )

[D] x + 5

12. A rectangular prism has a length of2 2 24

4

2

2

x xx x+ −

+, a width of x x

x

2 64

+ −+

, and a

height of 8 29

2

2

x xx

+−

. For all values of x for

which it is defined, express, in terms of x, thevolume of the prism in simplest form.

[12]

Part 2: Dividing Rational Expressions

13. Perform the indicated operation and expressthe result in simplest terms:

xx

xx+

÷−3

392

[13]

14. If f ( )x xx

= −+

3 2718 30

2

and g( ) ,x x xx x

= − +− −

2

2

7 123 7 20

find f g( ) ( )x x÷ for all values of x for whichthe expression is defined and express youranswer in simplest form.

[14]

15. Express in simplest form:4 8

12

3 154

2 8 10

2

2

xx

xx

xx x

++

• −−

÷ −− −

[15]

16. Perform the indicated operations and simplifycompletely:

xx x

x xx x

xx x

2

2

2

2 2

95

512

48 16

−−

• −− −

÷ −− +

[16]

Lesson 12-4: Dividing Polynomials

Part 1: Dividing Polynomials

17. When 3 62x x− is divided by 3x, the result is

[17]

[A] x + 2 [B] 2x[C] − 2x [D] x − 2

18. The expression ( )50 60 10 103 2x x x x− + ÷ isequivalent to

[18]

[A] 5 62x x− [B] 5 60 102 2x x x− +

[C] 5 63 2x x x− + [D] 5 6 12x x− +



Lesson 12-5: Adding and SubtractingRational Expressions

Part 2: Adding and Subtracting Rational Expressionswith Unlike Denominators

19. What is the least common denominator of 12

,

27x

, and 5x

?

[19]

[A] 9x [B] 14 2x [C] 14x [D] 2x

20. The sum of 3 25

0x

x+ ≠, , is

[20]

[A] 2 155

xx+ [B] 5

5x +

[C] 1x

[D] 2 155

xx

++

21. What is the sum of 2x

and x2

?

[21]

[A] 42

2+ xx

[B] 1

[C] 42+ xx

[D] 22+ xx

22. Which expression is equivalent to ax

bx

+2

?

[22]

[A] 22a b

x+ [B] 2a b

x+

[C] a bx

+2

[D] a bx

+3

23. What is the sum of 37n

and 73n

?

[23]

[A] 4221n

[B] 1021n

[C] 1n

[D] 5821n

24. The expression yx

− 12

is equivalent to

[24]

[A] 22y x

x− [B] x y

x− 22

[C] 12− yx

[D] yx

−−

12

25. Expressed as a single fraction, what is1

11 0 1

x xx

++ ≠ −, , ?

[25]

[A] 2 12

xx x

++

[B] 2 32

xx x

++

[C] 32x

[D] 22 1x +

26. Express in simplest form: 1 13x x

++

[26]

27. What is the sum of 33x −

and xx3−

?

[27]

[A] 1 [B] −1 [C] 0 [D] xx

+−

33



28. What is the sum of ( ) ?yy

− ++

5 32

[28]

[A] 5−y [B]2

732

+−−

yyy

[C]22

+−

yy [D]

272

+−

yy

Lesson 12-6: Solving RationalEquations

Part 1: Solving Rational Equations

29. What is the solution set of the equationx

x x x x−−

+=

− −41

328

122 ?

[29]

[A] {-6} [B] {4,-6} [C] { } [D] {4}

30. Solve for x and express your answer insimplest radical form:

4 31

7x x

−+

=

[30]

31. Solve for all values of x: 9 92

12x x

+−

=

[31]

32. Working by herself, Mary requires 16minutes more than Antoine to solve amathematics problem. Working together,Mary and Antoine can solve the problem in 6minutes. If this situation is represented by the

equation 6 616

1t t

++

= , where t represents the

number of minutes Antoine works alone tosolve the problem, how many minutes will ittake Antoine to solve the problem if he worksby himself?

[32]

33. Electrical circuits can be connected in series,one after another, or in parallel circuits thatbranch off a main line. If circuits are hookedup in parallel, the reciprocal of the totalresistance in the series is found by adding thereciprocals of each resistance, as shown in theaccompanying diagram.

If R x R x1 2 3= = +, , and the total resistance,RT , is 2.25 ohms, find the positive value ofR1 to the nearest tenth of an ohm.

[33]

Part 2: Solving Proportions

34. What is the value of x in the equationx

x2 143+

= ?

[34]

[A] − 54

[B] − 45

[C] − 5 [D] − 15



35. Solve for all values of x that satisfy the

equation xx x+

=+35

7.

[35]

36. Solve algebraically for x: 1 16x

x= +

[36]

37. A rectangle is said to have a golden ratio

when wh

hw h

=−

, where w represents width

and h represents height. When w = 3,between which two consecutive integers willh lie?

[37]

Lesson 12-7: Counting Methods andPermutations

Part 1: Using the Multiplication Counting Principle

38. Max goes through the cafeteria line andcounts seven different meals and threedifferent desserts that he can choose. Whichexpression can be used to determine howmany different ways Max can choose a mealand a dessert?

[38]

[A] 7 3! !• [B] 7 3P

[C] 7 3C [D] 7 3•

39. Robin has 8 blouses, 6 skirts, and 5 scarves.Which expression can be used to calculate thenumber of different outfits she can choose, ifan outfit consists of a blouse, a skirt, and ascarf?

[39]

[A] 8!6!5! [B] 19 3C

[C] 8 6 5+ + [D] 8 6 5⋅ ⋅

40. Leo purchased five shirts, three pairs of pants,and four pairs of shoes. Which expressionrepresents how many different outfitsconsisting of one shirt, one pair of pants, andone pair of shoes Leo can make?

[40]

[A] 5 3 4+ + [B] 12 3C

[C] 12 3P [D] 5 3 4⋅ ⋅

41. How many different outfits consisting of ahat, a pair of slacks, and a sweater can bemade from two hats, three pairs of slacks, andfour sweaters?

[41]

[A] 9 [B] 24 [C] 29 [D] 12

42. Juan has three blue shirts, two green shirts,seven red shirts, five pairs of denim pants,and two pairs of khaki pants. How manydifferent outfits consisting of one shirt andone pair of pants are possible?

[42]

[A] 420 [B] 84 [C] 130 [D] 19

43. Paloma has 3 jackets, 6 scarves, and 4 hats.Determine the number of different outfitsconsisting of a jacket, a scarf, and a hat thatPaloma can wear.

[43]



44. The school cafeteria offers five sandwichchoices, four desserts, and three beverages.How many different meals consisting of onesandwich, one dessert, and one beverage canbe ordered?

[44]

[A] 3 [B] 1 [C] 12 [D] 60

45. A deli has five types of meat, two types ofcheese, and three types of bread. How manydifferent sandwiches, consisting of one typeof meat, one type of cheese, and one type ofbread, does the deli serve?

[45]

[A] 10 [B] 25 [C] 30 [D] 75

46. Cole's Ice Cream Stand serves sixteendifferent flavors of ice cream, three types ofsyrup, and seven types of sprinkles. If an icecream sundae consists of one flavor of icecream, one type of syrup, and one type ofsprinkles, how many different ice creamsundaes can Cole serve?

[46]

[A] 26 [B] 3 [C] 336 [D] 10,836

47. In a school building, there are 10 doors thatcan be used to enter the building and 8stairways to the second floor. How manydifferent routes are there from outside thebuilding to a class on the second floor?

[47]

[A] 18 [B] 80 [C] 10 [D] 1

48. Jeremy's bedroom has two doors leading intothe hallway. His house has four doors leadingto the outside. Using the doorways, in howmany different ways can Jeremy leave hisroom and go outside?

[48]

[A] 4 [B] 8 [C] 6 [D] 5

49. A certain car comes in three body styles witha choice of two engines, a choice of twotransmissions, and a choice of six colors.What is the minimum number of cars a dealermust stock to have one car of every possiblecombination?

[49]

[A] 36 [B] 42 [C] 72 [D] 13

50. Debbie goes to a diner famous for its expresslunch menu. The menu has five appetizers,three soups, seven entrees, six vegetables, andfour desserts. How many different mealsconsisting of either an appetizer or a soup,one entree, one vegetable, and one dessert canDebbie order?

[50]

51. When Kimberly bought her new car, shefound that there were 72 different ways hercar could be equipped. Her choices includedfour choices of engine and three choices oftransmission. If her only other choice wascolor, how many choices of color did shehave?

[51]

[A] 12 [B] 65 [C] 60 [D] 6



Part 2: Finding Permutations

52. The value of 5! is

[52]

[A] 15

[B] 20 [C] 120 [D] 5

53. The value of !3!7 is

[53]

[A] 24 [B] 4 [C] 7 [D] 840

54. What is the value of 8!4!

?

[54]

[A] 2 [B] 2! [C] 1,680 [D] 4!

55. Which value is equivalent to 3 3P ?

[55]

[A] 3! [B] 27 [C] 9 [D] 1

56. How many different 6-letter arrangements canbe formed using the letters in the word“ABSENT,” if each letter is used only once?

[56]

[A] 46,656 [B] 720 [C] 36 [D] 6

57. How many different 4-letter arrangements canbe formed using the letters of the word"JUMP," if each letter is used only once?

[57]

[A] 4 [B] 24 [C] 16 [D] 12

58. What is the total number of different four-letter arrangements that can be formed fromthe letters in the word "VERTICAL," if eachletter is used only once in an arrangement?

[58]

[A] 8 [B] 40,320

[C] 1,680 [D] 6,720

59. A locker combination system uses three digitsfrom 0 to 9. How many different three-digitcombinations with no digit repeated arepossible?

[59]

[A] 30 [B] 720 [C] 504 [D] 1,000

60. How many different five-digit numbers canbe formed from the digits 1, 2, 3, 4, and 5 ifeach digit is used only once?

[60]

[A] 20 [B] 24 [C] 120 [D] 60

61. All seven-digit telephone numbers in a townbegin with 245. How many telephonenumbers may be assigned in the town if thelast four digits do not begin or end in a zero?

[61]

62. Julia has four different flags that she wants tohang on the wall of her room. How manydifferent ways can the flags be arranged in arow?

[62]

[A] 1 [B] 16 [C] 24 [D] 10



63. Six members of a school's varsity tennis teamwill march in a parade. How many differentways can the players be lined up if Angela,the team captain, is always at the front of theline?

[63]

64. There were seven students running in a race.How many different arrangements of first,second, and third place are possible?

[64]

65. The telephone company has run out of seven-digit telephone numbers for an area code. Tofix this problem, the telephone company willintroduce a new area code. Find the numberof new seven-digit telephone numbers thatwill be generated for the new area code ifboth of the following conditions must be met:o The first digit cannot be a zero or a one.o The first three digits cannot be theemergency number (911) or the number usedfor information (411).

[65]

66. In Jackson County, Wyoming, license platesare made with two letters (A through Z)followed by three digits (0 through 9). Theplates are made according to the followingrestrictions:o the first letter must be J or W, and thesecond letter can be any of the 26 letters inthe alphabeto no digit can be repeatedHow many different license plates can bemade with these restrictions?

[66]

67. A certain state is considering changing thearrangement of letters and numbers on itslicense plates. The two options the state isconsidering are:Option 1: three letters followed by a four-digit number with repetition of both lettersand digits allowedOption 2: four letters followed by a three-digit number without repetition of eitherletters or digits[Zero may be chosen as the first digit of thenumber in either option.]Which option will enable the state to issuemore license plates? How many moredifferent license plates will that option yield?

[67]

Lesson 12-8: Combinations

Part 1: Combinations

68. The expression 29 C is equivalent to

[68]

[A] 29 P [B] 79 P [C]!2!9 [D] 79 C

69. How many different three-member teams canbe selected from a group of seven students?

[69]

[A] 1 [B] 210 [C] 35 [D] 5,040

70. If the Math Olympiad Club consists ofeighteen students, how many different teamsof four students can be formed forcompetitions?

[70]

[A] 66 [B] 73,440 [C] 72 [D] 3,060



71. How many different three-member teams canbe formed from six students?

[71]

[A] 20 [B] 120 [C] 720 [D] 216

72. There are 12 people on a basketball team, andthe coach needs to choose 5 to put into agame. How many different possible ways canthe coach choose a team of 5 if each personhas an equal chance of being selected?

[72]

[A] 5 12C [B] 12 5P [C] 12 5C [D] 5 12P

73. How many different five-member teams canbe made from a group of eight students, ifeach student has an equal chance of beingchosen?

[73]

[A] 40 [B] 56 [C] 336 [D] 6,720

74. In the next Olympics, the United States canenter four athletes in the diving competition.How many different teams of four divers canbe selected from a group of nine divers?

[74]

[A] 6,561 [B] 126 [C] 3,024 [D] 36

75. Alan, Becky, Jesus, and Mariah are fourstudents in the chess club. If two of thesestudents will be selected to represent theschool at a national convention, how manycombinations of two students are possible?

[75]

76. Five people have volunteered to work on anawards dinner at Madison High School. Howmany different committees of four can beformed from the five people?

[76]

[A] 20 [B] 10 [C] 1 [D] 5

77. A committee of five members is to berandomly selected from a group of ninefreshmen and seven sophomores. Whichexpression represents the number of differentcommittees of three freshmen and twosophomores that can be chosen?

[77]

[A] 2739 CC ⋅ [B] 2739 CC +

[C] 2739 PP ⋅ [D] 216316 CC ⋅

78. An algebra class of 21 students must send 5students to meet with the principal. Howmany different groups of 5 students could beformed from this class?

[78]

79. In a game, each player receives 5 cards from adeck of 52 different cards. How manydifferent groupings of cards are possible inthis game?

[79]

[A] 525

!!

[B] 52 5P [C] 5! [D] 52 5C

80. Megan decides to go out to eat. The menu atthe restaurant has four appetizers, three soups,seven entrees, and five desserts. If Megandecides to order an appetizer or a soup, andone entree, and two different desserts, howmany different choices can she make?

[80]



81. On a bookshelf, there are five differentmystery books and six different biographies.How many different sets of four books canEmilio choose if two of the books must bemystery books and two of the books must bebiographies?

[81]

82. If there are four teams in a league, how manygames will have to be played so that eachteam plays every other team once?

[82]

[A] 8 [B] 3 [C] 16 [D] 6

83. Five friends met for lunch, and they all shookhands. Each person shook the other person'sright hand only once. What was the totalnumber of handshakes?

[83]

Part 2: Probability with Counting Techniques

84. Three roses will be selected for a flower vase.The florist has 1 red rose, 1 white rose, 1yellow rose, 1 orange rose and 1 pink rosefrom which to choose.a How many different three rose selectionscan be formed from the 5 roses?b What is the probability that 3 roses selectedat random will contain 1 red rose, 1 whiterose, and 1 pink rose?c What is the probability that 3 roses selectedat random will not contain an orange rose?

[84]

85. Paul orders a pizza. Chef Carl randomlychooses two different toppings to put on thepizza from the following: pepperoni, onion,sausage, mushrooms, and anchovies. If Paulwill not eat pizza with mushrooms, determinethe probability that Paul will not eat the pizzaChef Carl has made.

[85]

86. Sal has a small bag of candy containing threegreen candies and two red candies. Whilewaiting for the bus, he ate two candies out ofthe bag, one after another, without looking.What is the probability that both candies werethe same color?

[86]

87. Alexi's wallet contains four $1 bills, three $5bills, and one $10 bill. If Alexi randomlyremoves two bills without replacement,determine whether the probability that thebills will total $15 is greater than theprobability that the bills will total $2.

[87]

88. A bookshelf contains six mysteries and threebiographies. Two books are selected atrandom without replacement.a What is the probability that both books aremysteries?b What is the probability that one book is amystery and the other is a biography?

[88]


New York Additional Topics NYP. 732-737, 752-757

New York Additional Topics Lesson 2P.732-737: Quartiles and Box-and-Whisker Plots

1. The accompanying diagram is an example ofwhich type of graph?

[1]

[A] bar graph [B] box-and-whisker plot

[C] stem-and-leaf plot [D] histogram

2. The accompanying diagram shows a box-and-whisker plot of student test scores on lastyear's Mathematics A midterm examination.

What is the median score?

[2]

[A] 71 [B] 62 [C] 81 [D] 92

3. The accompanying box-and-whisker plotrepresents the scores earned on a science test.

What is the median score?

[3]

[A] 75 [B] 70 [C] 85 [D] 77

New York Additional Topics Lesson 6P.752-757: Systems of Linear andQuadratic Equations

4. The accompanying diagram shows the graphsof a linear equation and a quadratic equation.

How many solutions are there to this systemof equations?

[4]

[A] 2 [B] 0 [C] 3 [D] 1



5. The graphs of the equations y x x= + −2 4 1and y x+ =3 are drawn on the same set ofaxes. At which point do the graphs intersect?

[5]

[A] (1, 4) [B] (-2, -5)

[C] (1, -2) [D] (-2, 1)

6. A rocket is launched from the ground andfollows a parabolic path represented by theequation y x x= − +2 10 . At the same time, aflare is launched from a height of 10 feet andfollows a straight path represented by theequation y x= − +10. Using theaccompanying set of axes, graph theequations that represent the paths of therocket and the flare, and find the coordinatesof the point or points where the pathsintersect.

[6]

7. Solve the following system of equations:y x xy x

= + += +

2 4 15 3

[The use of the grid is optional.]

[7]



8. Solve the following system of equationsalgebraically or graphically for x and y:

y x x= + −2 2 1y x= +3 5

For an algebraic solution, show your workhere .For a graphic solution, show your work here.

[8]

9. Solve the following system of equationsalgebraically.y x x= + −2 4 2y x= +2 1

[9]

10. A pelican flying in the air over water drops acrab from a height of 30 feet. The distancethe crab is from the water as it falls can berepresented by the function h t t( ) ,= − +16 302

where t is time, in seconds. To catch the crabas it falls, a gull flies along a path representedby the function g t t( ) .= − +8 15 Can the gullcatch the crab before the crab hits the water?Justify your answer. [The use of theaccompanying grid is optional.]

[10]



11. The price of a stock, A(x), over a 12-monthperiod decreased and then increasedaccording to the equationA x x x( ) . ,= − +0 75 6 202 where x equals the

number of months. The price of anotherstock, B(x), increased according to theequation B x x( ) . .= +2 75 150 over the same12-month period. Graph and label bothequations on the accompanying grid. State allprices, to the nearest dollar, when both stockvalues were the same.

[11]


Skills Handbook P. 765-768, 773

Skills Handbook P.765: Perimeter,Area, and Volume

1. The equation A = +12

12 3 7( )( ) is used to find

the area of a trapezoid. Which calculationwould not result in the correct area?

[1]

[A] 12 3 72

( )+ [B] 122

102

×

[C] 05 12 10. ( )( ) [D] 6 3 7( )+

2. The second side of a triangle is two more thanthe first side, and the third side is three lessthan the first side. Which expressionrepresents the perimeter of the triangle?

[2]

[A] x x2 6− − [B] 2 1x −[C] x + 5 [D] 3 1x −

3. If the base of a triangle is represented byx + 4 and the height is represented by 2x,which expression represents the area of thetriangle?

[3]

[A] 12

4 2( )( )x x+ [B] ( ) ( )x x+ +4 2

[C] ( )( )x x+ 4 2 [D] 12

4 2(( ) ( ))x x+ +

4. Sean knows the length of the base, b, and thearea, A, of a triangular window in hisbedroom. Which formula could he use to findthe height, h, of this window?

[4]

[A] h Ab

=2

[B] h A b= −2

[C] h A b= ( )( )2 [D] h Ab

= 2

5. On the accompanying set of axes, graph andlabel the following lines:

yx

y x

== −

= +

54

54

5

Calculate the area, in square units, of thetriangle formed by the three points ofintersection.

[5]



6. Mr. Gonzalez owns a triangular plot of landBCD with DB = 25 yards and BC = 16 yards.He wishes to purchase the adjacent plot ofland in the shape of right triangle ABD, asshown in the accompanying diagram, with AD= 15 yards. If the purchase is made, what willbe the total number of square yards in the areaof his plot of land, ΔACD?

[6]

7. The plan of a parcel of land is represented bytrapezoid ABCD in the accompanyingdiagram. If the area of ΔABE is 600 squarefeet, find the minimum number of feet offence needed to completely enclose the entireparcel of land, ABCD.

[7]

8. The Pentagon building in Washington, D.C.,is shaped like a regular pentagon. If thelength of one side of the Pentagon isrepresented by n + 2, its perimeter would berepresented by

[8]

[A] 5n + 10 [B] 10n

[C] n + 10 [D] 5n + 2

9. The lengths of the sides of home plate in abaseball field are represented by theexpressions in the accompanying figure.

Which expression represents the perimeter ofthe figure?

[9]

[A] 2 3x yz+ [B] x y z2 3+

[C] 5xyz [D] 2 2x y yz+ +

10. An engineer measured the dimensions for arectangular site by using a wooden pole ofunknown length x. The length of therectangular site is 2 pole measures increasedby 3 feet, while the width is 1 pole measuredecreased by 4 feet. Write an algebraicrepresentation, in terms of x, for the perimeterof the site.

[10]

11. The length of a side of a square window inJessica's bedroom is represented by 2 1x − .Which expression represents the area of thewindow?

[11]

[A] 4 12x + [B] 4 4 12x x+ −

[C] 4 4 12x x− + [D] 2 12x +



12. What is the area of a square whose perimeteris represented by 12x?

[12]

[A] 12 2x [B] 144 2x

[C] 6 2x [D] 9 2x

13. The accompanying diagram shows a squarewith side y inside a square with side x.

Which expression represents the area of theshaded region?

[13]

[A] y x2 2− [B] x y2 2−

[C] y2 [D] x2

14. Express both the perimeter and the area of therectangle shown in the accompanyingdiagram as polynomials in simplest form.

[14]

15. In the figure below, the large rectangle,ABCD, is divided into four smaller rectangles.The area of rectangle AEHG x= 5 , the area ofrectangle GHFB x= 2 2 , the area of rectangleHJCF x= 6 , segment AG = 5, and segmentAE = x.

a Find the area of the shaded region.b Write an expression for the area of therectangle ABCD in terms of x.

[15]

16. A farmer has a rectangular field that measures100 feet by 150 feet. He plans to increase thearea of the field by 20%. He will do this byincreasing the length and width by the sameamount, x. Which equation represents thearea of the new field?

[16]

[A] (100 + 2x)(150 + x) = 18,000

[B] (100 + x)(150 + x) = 15,000

[C] (100 + x)(150 + x) = 18,000

[D] 2(100 + x) + 2(150 + x) = 15,000



17. In the accompanying figure, ACDH andBCEF are rectangles, AH = 2, GH = 3,GF = 4, and FE = 5.

What is the area of BCDG?

[17]

[A] 20 [B] 6 [C] 8 [D] 10

18. Kerry is planning a rectangular garden thathas dimensions of 4 feet by 6 feet. Kerrywants one-half of the garden to have roses,and she says that the rose plot will havedimensions of 2 feet by 3 feet. Is she correct?Explain.

[18]

19. Keesha wants to tile the floor shown in theaccompanying diagram. If each tile measures1 foot by 1 foot and costs $2.99, what will bethe total cost, including an 8% sales tax, fortiling the floor?

[19]

20. A rectangular garden is going to be planted ina person's rectangular backyard, as shown inthe accompanying diagram. Somedimensions of the backyard and the width ofthe garden are given. Find the area of thegarden to the nearest square foot.

[20]



Skills Handbook P.766: Translations

21. If x = -2 and y = -1, which point on theaccompanying set of axes represents thetranslation ( , ) ( , ) ?x y x y→ + −2 3

[21]

[A] R [B] Q [C] S [D] T

22. What is the image of (x, y) after a translationof 3 units right and 7 units down?

[22]

[A] (x - 3, y - 7) [B] (x + 3, y + 7)

[C] (x + 3, y - 7) [D] (x - 3, y + 7)

23. What is the image of point (2,5) under thetranslation that shifts (x,y) to ( , ) ?x y+ −3 2

[23]

[A] (0,8) [B] (5,8) [C] (0,3) [D] (5,3)

24. What are the coordinates of P', the image ofP(-4, 0) under the translation ( , ) ?x y− +3 6

[24]

[A] (1,6) [B] (-7,6)

[C] (2,-3) [D] (7,-6)

25. The image of point (3,-5) under thetranslation that shifts (x,y) to ( , )x y− −1 3 is

[25]

[A] (2,8) [B] (-4,8)

[C] (2,-8) [D] (-3,15)

26. What is the image of point (-3, 4) under thetranslation that shifts (x,y) to ( , ) ?x y− +3 2

[26]

[A] (-6,6) [B] (0,6)

[C] (-6,8) [D] (6,6)

27. A translation moves P(3,5) to P’(6,1). Whatare the coordinates of the image of point( , )− −3 5 under the same translation?

[27]

[A] (-6,-1) [B] (-5,-3)

[C] (-6,-9) [D] (0,-9)

28. The image of point (-2,3) under translation Tis (3,-l). What is the image of point (4,2)under the same translation?

[28]

[A] (-1,6) [B] (0,7)

[C] (5,4) [D] (9,-2)

29. The image of the origin under a certaintranslation is the point (2,-6). The image ofpoint ( , )− −3 2 under the same translation isthe point

[29]

[A] (-1,-8) [B] (-6,12)

[C] ( , )− 32

13

[D] (-5,4)



30. Two parabolic arches are to be built. Theequation of the first arch can be expressed asy x= − +2 9, with a range of 0 9≤ ≤y , andthe second arch is created by thetransformation T7 0, . On the accompanyingset of axes, graph the equations of the twoarches. Graph the line of symmetry formedby the parabola and its transformation andlabel it with the proper equation.

[30]

Skills Handbook P.767: Reflections

31. Ms. Brewer's art class is drawing reflectedimages. She wants her students to drawimages reflected in a line. Which diagramrepresents a correctly drawn image?

[31]

[A]

[B]

[C] [D]

32. When the point ( , )2 5− is reflected in the x-axis, what are the coordinates of its image?

[32]

[A] (5, 2) [B] (-5, 2)

[C] (2, 5) [D] (-2, 5)

33. Which image represents a line reflection?

[33]

[A] [B]

[C] [D]



34. The coordinates of the endpoints of AB areA(0,2) and B(4,6). Graph and state thecoordinates of A’ and B’, the images of A andB after AB is reflected in the x-axis.

[34]

35. Triangle SUN has coordinates S(0,6), U(3,5),and N(3,0). On the accompanying grid, drawand label ΔSUN . Then, graph and state thecoordinates of ΔS U N' ' ' , the image of ΔSUNafter a reflection in the y-axis.

[35]

36. On the accompanying set of axes, draw thereflection of ABCD in the y-axis. Label andstate the coordinates of the reflected figure.

[36]

37. Triangle ABC has coordinates A(2,0), B(l,7),and C(5,l). On the accompanying set of axes,graph, label, and state the coordinates ofΔA B C' ' ' , the reflection of ΔABC in the y-axis.

[37]



38. Carson is a decorator. He often sketches hisroom designs on the coordinate plane. He hasgraphed a square table on his grid so that itscorners are at the coordinates A(2,6), B(7,8),C(9,3), and D(4,l). To graph a secondidentical table, he reflects ABCD over the y-axis. On the accompanying set of coordinateaxes, sketch and label ABCD and its imageA’B’C’D’, which show the locations of thetwo tables. Then find the number of squareunits in the area of ABCD.

[38]

39. On the accompanying grid, draw and labelquadrilateral ABCD with points A(1,2),B(6,1), C(7,6), and D(3,7). On the same setof axes, plot and label quadrilateral A’B’C’D’,the reflection of quadrilateral ABCD in the y-axis. Determine the area, in square units, ofquadrilateral A’B’C’D’.

[39]

40. What are the coordinates of point P, theimage of point (3,-4) after a reflection in theline y = x?

[40]

[A] (-4,3) [B] (4,-3)

[C] (-3,4) [D] (3,4)

41. A function, f, is defined by the set {(2,3),(4,7), (-1,5)}. If f is reflected in the liney x= , which point will be in the reflection?

[41]

[A] (-5,1) [B] (-1,5)

[C] (5-1) [D] (1-5)



Skills Handbook P.768: Rotations

42. In the accompanying graph, if point P hascoordinates ( , ),a b which point hascoordinates ( , ) ?−b a

[42]

[A] B [B] A [C] D [D] C

43. Point ′P is the image of point P(-3,4) after atranslation defined by T( , ) .7 1− Which othertransformation on P would also produce ′P ?

[43]

[A] ry x=− [B] R90°

[C] ry axis− [D] R− °90

Skills Handbook P.773: Circle Graphs

44. The accompanying circle graph shows howthe Marino family spends its income eachmonth.

What is the measure, in degrees, of the centralangle that represents the percentage of incomespent on food?

[44]

[A] 90 [B] 50 [C] 360 [D] 25

45. The accompanying circle graph shows howShannon earned $600 during her summervacation.

What is the measure of the central angle ofthe section labeled "Chores"?

[45]

[A] 60° [B] 90° [C] 30° [D] 120°



46. Mr. Smith's class voted on their favorite icecream flavors, and the results are shown inthe accompanying diagram. If there are 20students in Mr. Smith's class, how manystudents chose coffee ice cream as theirfavorite flavor?

[46]

47. The accompanying circle graph shows thefavorite colors of the 300 students in the ninthgrade. How many students chose red as theirfavorite color?

[47]

48. In a recent poll, 600 people were askedwhether they liked Chinese food. A circlegraph was constructed to show the results.The central angles for two of the three sectorsare shown in the accompanying diagram.How many people had no opinion?

[48]

49. Nine hundred students were asked whetherthey thought their school should have a dresscode. A circle graph was constructed to showthe results. The central angles for two of thethree sectors are shown in the accompanyingdiagram. What is the number of students whofelt that the school should have no dresscode?

[49]



50. In a recent poll in Syracuse, New York, 3,000people were asked to pick their favoritebaseball team. The accompanying circlegraph shows the results of that poll.

How many of the people polled picked theRed Sox as their favorite team?

[50]

[A] 1,200 [B] 300 [C] 1,800 [D] 500

51. In a class of 24 students, 10 have brown hair,8 have black hair, 4 have blond hair, and 2have red hair. On the accompanying diagram,construct a circle graph to show the students'hair color.

[51]

JEFFERSON MATH PROJECT REGENTS BY CHAPTER

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