Solve Quadratic Inequalities by Graphing

In graphing quadratic inequality, we use ______________ when the given inequality symbol is > and <.

Which of the following is the correct interval of x² + 2x -24 > 0

• x > -6

• x > 4

• x < 4

• 4 < x < -6

Which of the following is an example of quadratic inequality?

• 2x² + 3x + 4 > 0

• 15x ≤ 10

• x² - x +15 < -30

• x² + 4x - 5 = 0

In graphing quadratic inequality, we use ______________ when the given inequality symbol is \ge and \le .

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

• y ≥ -(x + 4)² + 1
• y < -(x - 4)² + 1
• y ≤ (x - 4)² + 1
• y ≤ -(x - 4)² + 1

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

• -4 ≤ d ≤ -3/2

• 3/2 ≤ d ≤ 4

• -4 ≤ d ≤ 3/2

• 4 ≥ d ≥ 3/2

• x ≥ 2
• x ≥ -2
• x ≤ 2
• x ≤ -2

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

• -4 < a < 2

• -4 < a < -2

• 4 > a > 2

• 4 > a > -2

Which inequality is shown?

• y< -x²

• y≤ -x²

• y> -x²

• y≥ -x²