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Algebra Unit 4 Day 2 Systems graphically.notebook 1 December 09, 2016 Algebra I 12/09/16 Aim : How Do We Solve Systems of Equations Graphically? HW : Solving Systems Graphically HW Day 2 DO NOW Solve by Graphing. Let x = _______________ Let y = _______________ the cost of a popcorn the cost of a cookie
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Page 1: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

1

December 09, 2016

Algebra I                                                                    12/09/16Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

DO NOWSolve by Graphing.

Let x = _______________

Let y = _______________

the cost of a popcorn

the cost of a cookie

Page 2: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

2

December 09, 2016

Let x = _______________

Let y = _______________

the cost of a popcorn

the cost of a cookie

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

What is the price of each item?

Page 3: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

3

December 09, 2016

Graphing Systems of Linear Equations

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2­3

­4­5

­6­7­8

­9­10

12345678

10

9

x

y

8

y = x + 4y = 4x + 1

Solution:  ______

Just the AlgebraTogether

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 4: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

4

December 09, 2016

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2­3

­4­5

­6­7­8

­9­10

12345678

10

9

x

y

8

Solution:  ______

Find the solution to the system of linear equations graphically

Question: What makes this problem more difficult?    How would you begin this problem?

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 5: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

5

December 09, 2016

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2­3

­4­5

­6­7­8

­9­10

12345678

10

9

x

y

8

Solution:  ______

Solve the system of equations graphically

What's going on here?

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 6: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

6

December 09, 2016

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2

­3

­4

­5

­6

­7

­8

­9

­10

1

2

3

4

5

6

7

8

10

9

x

y

8

Solution:  ______

Solve the system of equations graphically

What is the solution???

Page 7: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

7

December 09, 2016

What is the last possibility?

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 8: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

8

December 09, 2016

One day I bought two Twix and two apples for $6. The next day I bought four Twix and four apples for $12. How much 

does each one cost?

Let x = the cost of TwixLet y = the cost of an apple

Write the system of equations. What is weird about this pair of 

equations?

Your task:

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2­3

­4­5

­6­7­8

­9­10

12345678

10

9

x

y

8

Page 9: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

9

December 09, 2016

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

One day I bought two Twix and two apples for $6. The next day I bought four Twix and four apples for $12. How much 

does each one cost?

Let x = the cost of Twix

Let y = the cost of an apple

1 2 3 4 5 6 7 9 10­10 ­9 ­8 ­7 ­6 ­5 ­4 ­2 ­1­3­1

­2­3

­4­5

­6­7­8

­9­10

12345678

10

9

x

y

8

How many solutions do we have???

Page 10: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

10

December 09, 2016

What is the last possibility?

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 11: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

11

December 09, 2016

How many solutions can their be for a system of linear equations? What are the circumstances for each type of solution?

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Page 12: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

12

December 09, 2016

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Signal Your Understanding of Graphing Systems of Equations

I can graph systems of equations in slope­intercept and standard form.

I can graph systems of equations in slope­intercept but struggle to graph them in standard form.

I am still struggling with graphing systems and need additional help.

Page 13: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

13

December 09, 2016

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Exit Slip Solve the following system of equations by graphing.

Solution:  ______

Page 14: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

14

December 09, 2016

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2

Exit Slip Solve the following system of equations by graphing.

Solution:  ______

Page 15: Algebra - Unit 4 - Day 2 - Systems · PDF fileAlgebra ­ Unit 4 ­ Day 2 ­ Systems 3 December 09, 2016 Graphing Systems of Linear Equations ­10­9­8­7­6­5­4 ­3­2­1 1 2 3

Algebra ­ Unit 4 ­ Day 2 ­ Systems graphically.notebook

15

December 09, 2016

mathsims.wordpress.comLesson Slides, Resources and More!

Get a head start on your Homework!!!

Aim: How Do We Solve Systems of Equations Graphically?HW:  Solving Systems Graphically HW Day 2