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Published byFrederick Sullivan Modified over 9 years ago
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Graphing Quadratic Inequalities Chapter 5.7
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Graphing Quadratic Inequalities STEP 1 – Graph the parabola. If the symbol is, draw it with a dashed line If the symbol is ≤ or ≥, draw a solid line STEP 2 – Choose a test point inside the parabola. Plug the coordinates (x, y) into the inequality. STEP 3 – If the test point produces a true statement, shade the area inside of the parabola. Otherwise, shade outside of the parabola.
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Graph Quadratic Inequality: y > x 2 – 2x – 3 STEP 1 – Graph the parabola. :dashed line ≤ or ≥ :solid line STEP 2 – Test point STEP 3 – Shading
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Graph Quadratic Inequality: y ≤ 2x 2 – 5x – 3 STEP 1 – Graph the parabola. :dashed line ≤ or ≥ :solid line STEP 2 – Test point STEP 3 – Shading
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