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Parallel and Perpendicular Lines Quiz

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This quiz will test your knowledge on identifying parallel, perpendicular, and neither lines based on their slopes. Get your pencil and calculator ready!

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Parallel and Perpendicular Lines Quiz

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  1. Warmups • Write an equation in standard form: (1,2)(5,-2) • Find the slope and y-intercept: 6x + y = 12y + 3 = -1(x + 1) • Determine the value of r: (1, r) (r, -2)

  2. QUIZ TIME!!! • Take out a pencil and Calculator • Please put everything else away

  3. 6-6 Parallel and Perpendicular Lines Objective: To identify if two lines are parallel, perpendicular or neither

  4. Parallel vs. Perpendicular • Parallel – Lines have the same slope • // • ex: -2 and -2 1 1 • Perpendicular – Lines have opposite/reciprocal slopes • . • ex: -2 and 1 1 2 90°

  5. Example 1 • Graph the following lines on the same graph: y = -2x + 4 y – 1 = -2(x + 1) Are they parallel, perpendicular, or neither? // n

  6. Example 2 and Then circle parallel, perpendicular or neither

  7. Example 3 2x + 3y = 6 and Then circle parallel, perpendicular or neither

  8. Example 4 and y = -3x + 2 Then circle parallel, perpendicular or neither

  9. Homework • Pg. 367 #18-23 & Pg. 771(6-6) #1-6 • Look at the SLOPE • Same = parallel • Opposite (opposite sign & reciprocal) = perpendicular • Neither = neither • You do not have to graph on the homework!!

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