Quadratic Inequalities

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

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Solve:

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

• [-4, 1.5]

• (−∞, -4) U (1.5, ∞)

• (−∞, -4] U [1.5, ∞)

• no solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

Solve:

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

• (−∞, 0) U (3, ∞)

• (−∞, - 3) U (0, ∞)

• (-3, 0)

• (0, 3)

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

When graphing an inequality, you used a closed dot of shaded circle when you use which symbols?

• Less than, greater than

• Less than or equal to, greater than or equal to

• Equal

• Unequal

Tags

CCSS.6.EE.B.8

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

• [ 4, 3]

• (-4, -3]

• (-3, 4)

• [-3, 4]

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

Which symbol indicates "is greater than" in quadratic inequality?

• <

• ≤

• >

• ≥

Which symbol indicates "at least" in quadratic inequality?

• <

• ≤

• >

• ≥

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

Is (2, 3) part of the solution set?

0<2x² -3x+1

• Yes

• No

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.3

CCSS.HSA.SSE.A.1

 Which of the following is the solution set of   $x^2-9x-112\ge0$  ?

• {x l -7 < x < 16}

• {x l -7 ≤ x ≤ 16}

• {x l x < -7 or x > 16}

• {x l x ≤ -7 or x ≥ 16}

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

Plot the graph of the given quadratic inequality.

• 
• 
• 
• 

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.12