Quadratic Systems and Inequalities

What is the solution set to the inequality x² - 4x - 5 < 0

• x < -1 or x > 5
• x < -5 or x > 1
• -1 < x < 5
• -5 < x < 1

Solve the inequality:
2x² + 5x ≥  12

• [-4, 1.5]
• (-oo, -4) U (1.5, oo)
• (-oo, -4] U [1.5, oo)
• no solution

Solve the inequality:
 5x - 10x² < 0

• (0, ½)
• [0, ½]
• (-oo, 0) U (½, oo)
• (- ½ , 0)

Solve the inequality:
3x - x² > 0

• (-oo, 0) U (3, oo)
• (-oo, - 3) U (0, oo)
• (-3, 0)
• (0, 3)

Which inequality would shade above the x-axis?

• >
• <
• =
• ±

Which inequality would shade below the x-axis?

• >
• <
• =
• ±

Which inequality would be graphed with a solid dot on the x-intercepts?

• <
• >
• ≤
• ≠

Which inequality would be graphed with an open dot on the x-intercepts?

• ≥
• >
• ≤
• ≠

What 2 numbers can you multiply to get -14 that also add up to 5

• -7 and 2
• -3 and 8
• -1 and 14
• 7 and -2

Factor x² + 5x - 14 = 0

• (x - 7)(x + 2)= 0
• (x + 7)(x - 2) = 0
• x = 7 or x = -2
• x = -7 or x = 2