Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use. NAME ___________________________________________________ DATE _____________________ PERIOD __________ Lesson 5 Homework Practice Slope-Intercept Form State the slope and the y-intercept of the graph of each line. 1. 4x - y = 6 4; -6 2. 3x + 2y = 8 - 3 − 2 ; 4 3. y - 1 − 2 x = 3 − 4 1 − 2 ; 3 − 4 Graph each equation using the slope and y-intercept. 4. y = 3 − 4 x - 3 5. y = 5 − 6 x + 1 6. y = x + 5 7. y = - 1 − 2 x - 4 8. y = x - 4 9. y = -6x + 3 10. A person weighing 150 pounds burns about 320 Calories per hour walking at a moderate pace. Suppose that the same person burns an average of 1500 Calories per day through basic activities. The total Calories y burned by that person can be represented by the equation y = 320x + 1500, where x represents the number of hours spent walking. a. Graph the equation using the slope and b. State the slope and y-intercept of the graph y-intercept. of the equation and describe what they represent. The y-intercept 1500 represents the number of Calories burned through basic activities. The slope 320 represents the number of Calories burned per hour when walking. x y O y = x + 5 x y -4 -6 -8 4 6 8 2 4 2 6 8 O -2 -4 -6 -8 -2 y = x + 1 5 6 x y O y = x - 3 3 4 x y O y = -6x + 3 x y O y = x - 4 x y O y = - x - 4 1 2 1 2 4 5 3 1 2 3 4 5 6 7 8 9 10 Time Walking (h) Calories Burned (thousands) O y = 320x + 1500 Math Accelerated • Chapter 9 Linear Functions