1. Warm-Up Use SUBSTITUTION to solve the linear system 1) -2x + y = -32) -3x + 6y = 24 y = -2x + 1 -2x – y = 1

2. Sec.7.1-7.3 Review There are ten problems on the quiz.

3. Find the solution to the system by GRAPHING. Find the slope and y-intercept for each linear equation.GRAPHING. 1.) y = x + 3 y = -x + 7 2.) x + 9y = 9 3x + 6y = 6

4. Use LINEAR COMBINATIONS to solve the linear system.LINEAR COMBINATIONS 3.) x + y = 6 x – y = 12 4.) 5x – 3y = 7 x + 3y = 5

5. 5.) 2x + 3y = 36 2x – y = 4 6.) 2x + y = 0 5x – 4y = 26 7.) -4x + 7y = -2 x = -y – 5 Use Linear Combinations to solve the linear system.Linear Combinations

6. Use SUBSTITUTION to solve the linear system.SUBSTITUTION 8.) 4x – y = 8 y = 2x 9.) x + 3y = 9 4x – 2y = -6 10.) 5x – y = -5 3x + 6y = -3

7. Prepare for the Test Please take out two sheets of paper. Label them as below. Answers Only Show your work Name Period Date Sec.7.1-7.3 Quiz Name Period Date Sec.7.1-7.3 Quiz