Quadratic Inequalities Interval Notation

Look at the graph. Write the inequality in interval notation.

• (-2,5)

• (-∞,-2)⋃(5,∞)

• [-2,5]

• (-∞,-2]∪[5,∞)

What inequality is represented on the number line?

Tags

CCSS.6.EE.B.8

Which of these is part of the solution set of x² - 3x + 4 > 0?

• -4

• 1

• 5

• 10

Which of the following is not a solution to -x² + 3x + 10 < 0 ?

• -2

• -1

• 5

• 8

Which of the following is the interval notation of x² - x - 12 < 0?

• [ 4, 3]

• (-4, -3]

• (-3, 4)

• [-3, 4]

2x² + 5x ≥ 12 , then find the interval notation of the inequality.

• [-4, 1.5]

• (−∞, -4) U (1.5, ∞)

• (−∞, -4] U [1.5, ∞)

• no solution

Which of the following is the interval notation of x² - x - 12 < 0?

• [ 4, 3]

• (-4, -3]

• (-3, 4)

• [-3, 4]

• Linear Equation

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

Solve:

3x - x² > 0 , then find the interval notation of the inequality.

• (−∞, 0) U (3, ∞)

• (−∞, - 3) U (0, ∞)

• (-3, 0)

• (0, 3)

It is similar to quadratic equation, except instead of an equal sign there’s an inequality sign.

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

• Quadratic Function