Lesson 9-Solving Systems of Equations Using Substitution.pdf ...

1 downloads 188 Views 4MB Size Report
Office Manager (ESR). Public Relations (EAS). Real Estate Agent. (ESR). Sales Manager (ESA). Tax Accountant (ECS). Trave
February 03, 2014

Warm Up 1.) Estimate how many hearts are in the package.

Pull

February 03, 2014

Warm Up 2.) Estimate how many spice drops are in the package.

Pull

February 03, 2014

Monday 2/3/14

February 03, 2014

Lesson 9 - Solving Systems of Equations Using Substitution 1.) I can solve a system of equations using substitution.

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

(a) Solve using substitution. y = 3x - 12 -x = -34 + 3y

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

(b) Solve using substitution. x = 4y - 24 2x + y = -3

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

(c) Is (2, -1) a solution to the system Question 3x + 2y = 4 -x + 3y = -5 ?

YES Answer 3(2) + 2(-1) = 4 -(2) + 3(-1) = -5

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

(d) Solve using substitution. 5x = 2y - 31 x = -2y + 13

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

To solve a system of equations using substitution.

1.) Find the one that says x= or y=. 2.) Substitute for what letter you solved for. 3.) Solve that equation. 4.) Find the other letter.

February 03, 2014

Lesson 9-Solving Systems of Equations Using Substituion

Homework: Half Sheet