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Warm ups – solve and graph

Warm ups – solve and graph. |x + 4| = 20 |4 – x| < 11 |2x + 3| < 7 |2x – 1| < -5. 7-6 Absolute Value “>”. Objective: to solve open sentences involving absolute value and graph their solutions. Standards 3.0, 25.0. “>” = OR Great”OR” is “OR”. Change : Inequality sign

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Warm ups – solve and graph

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  1. Warm ups – solve and graph • |x + 4| = 20 • |4 – x| < 11 • |2x + 3| < 7 • |2x – 1| < -5

  2. 7-6 Absolute Value“>” Objective: to solve open sentences involving absolute value and graph their solutions. Standards 3.0, 25.0

  3. “>” = OR Great”OR” is “OR” • Change: • Inequality sign • Make number after “>” negative |2y + 5| > 3 2y + 5 > 3 or 2y + 5 < -3

  4. Example 2 • Change: • Inequality sign • Make number after “>” negative |8 - t| > 3 8 - t > 3 or 8 - t < -3

  5. Special Cases • |3y – 9| > 0 • |y + 10| > -2 All numbers

  6. TOO • |w + 8| > 1 • |x - 9| > 0 • |1 – 3y| > 2 • |4t + 8| > -6

  7. Working backwards… • Given the graph, you come up with inequality involving absolute value… |x-middle #| Distance to middle and? or?

  8. TOO • Given the graph, you come up with inequality involving absolute value… |x-middle #| Distance to middle and? or?

  9. Homework • Pg. 424 # 20, 22, 27, 28, 32, 33, 38-43

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