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Graphing Quadratic Inequalities Chapter 5.7. Graphing Quadratic Inequalities STEP 1 – Graph the parabola. If the symbol is, draw it with a dashed line.

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Presentation on theme: "Graphing Quadratic Inequalities Chapter 5.7. Graphing Quadratic Inequalities STEP 1 – Graph the parabola. If the symbol is, draw it with a dashed line."— Presentation transcript:

1 Graphing Quadratic Inequalities Chapter 5.7

2 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.

3 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

4 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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