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Warm-Up

Warm-Up. Use SUBSTITUTION to solve the linear system 1) -2x + y = -3 2) -3x + 6y = 24 y = -2x + 1 -2x – y = 1. Sec.7.1-7.3 Review. There are ten problems on the quiz. Find the solution to the system by GRAPHING . Find the slope and y-intercept for each linear equation.

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Warm-Up

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  1. Warm-Up • Use SUBSTITUTION to solve the linear system 1) -2x + y = -3 2) -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. 1.) y = x + 3 y = -x + 7 2.) x + 9y = 9 3x + 6y = 6

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

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

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

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

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