Algebra II: Section 4-8 Quadratic Inequalities Graph each inequality. 1. 4x + 4 2. 4 3. > + 2x 5 y y y ≥ – ≤ – – Solve each inequality by graphing. 4. 6x + 9 0 5. 4x + 32 0 6. + 10 > 10 x – ≤ – – ≥ – each inequality algebraically. 7. 3x 10 < 0 8. + 2x 35 0 – – – ≥ 9. 18x + 81 0 10. 36 – ≤ ≤ 11. 7x > 0 12. + 7x + 6 < 0 – 13. + 12 > 0 14. + 9x + 18 0 x – ≤ 15. 10x + 25 0 16. 2x + 15 0 – ≥ – – ≥ 17. + 3x > 0 18. 2 + 2x > 4 19. 64 20. 9 + 12x + 9 < 0 –– ≤ –16x
Algebra II: Section 4-8 Quadratic Inequalities Graph each inequality. 1. y ≥ – 4x + 4 2. y ≤ – 4 3. y > + 2x – 5 Solve each inequality by graphing. 4. – 6x + 9 ≤ 0 5. – – 4x + 32 ≥ 0 6. + x – 10 > 10 each inequality algebraically. 7. – 3x – 10 < 0 8. + 2x – 35 ≥ 0 9. – 18x + 81 ≤ 0 10. ≤ 36 11. – 7x > 0 12. + 7x + 6 < 0 13. + x – 12 > 0 14. + 9x + 18 ≤ 0 15. – 10x + 25 ≥ 0 16. – – 2x + 15 ≥ 0 17. + 3x > 0 18. 2 + 2x > 4 19. –– 64 ≤ –16x 20. 9 + 12x + 9 < 0
Skills_Practice_Quadratic_Inequalities.docx