Quadratic Inequality

Is the point (2, 1) a solution to the inequality shown?

• Yes

• No

Which of the following is an example of quadratic inequality?

• 2x² + 3x + 4 > 0

• 15x ≤ 10

• x² - x +15 < -30

• x² + 4x - 5 = 0

Solutions are in the ___________ area.

• non-shaded

• shaded

• vertex

• axis of symmetry

• Inside

• Outside

• Neither

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

Which of the following is the solution of the given Quadratic Inequality?

• 5 < y < 12

• 7 < y < 10

• 8 < y < 9

• 6 < y < 11

Which of these belongs to the solution set of the inequality x² > 4 ?

• -1

• 0

• 1

• 2

3x - x² > 0

• (−∞, 0) U (3, ∞)

• (−∞, - 3) U (0, ∞)

• (-3, 0)

• (0, 3)

Which of the following is the solution of the given Quadratic Inequality?

• b ≥ -2 or b ≤ -1

• b ≤ -2 or b ≥ -1

• b ≥ 2 or b ≤ 1

• b ≤ 2 or b ≥ 1

Solve:
2x² + 5x ≥  12

• [-4, 1.5]

• (-oo, -4) U (1.5, oo)

• (-oo, -4] U [1.5, oo)

• no solution