Unit 8 Quadratics Review

A quadratic function has zeros -7 and 9.

What are the linear factors of the function?

• (x+7) (x-9)

• (x-7) (x+9)

• (x+7)(x+9)

• (x-7)(x-9)

Tags

CCSS.HSA.APR.B.3

Which of the following represents a correct x-value of a solution to this equation?

4x² + 11x - 3 = 0

• x = -1

• x = 4

• x = -3

• x = -4

• x = 0

Tags

CCSS.HSA-REI.B.4B

What are the solutions to the quadaratic eqaution

2x² + 17x + 21 = 0

• x= ^-21/₂, -17

• x= ²/₃, 16

• x=-7, ^-3/₂

• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

Which of the following represents a quadratic function written in standard form that has roots of -3/4 and 5?

• $3x^2-16x-18=0$

• $3x^2+24x+18=0$

• $4x^2+23x+15=0$

• $4x^2-17x-15=0$

• None of the above

What is another name for the x-intercepts of a quadratic?

• y-intercept
• Zeros
• x-axis
• They don't have another name

Tags

CCSS.HSF-IF.C.7C

What is the domain of the graph?

• All real numbers
• To infinity and beyond
• y ≥ 0
• x ≥ 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the graph?

• All real numbers
• To infinity and beyond
• y ≥ 0
• x ≥ 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the graph?

• All real numbers
• 0 ≤ x ≤ 4
• 0 ≤ x ≤ 2000
• 0 ≤ y ≤ 2000

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the quadratic function given by the table?

• All real numbers

• All real numbers greater than or equal to -5

• All real numbers greater than or equal to -7

• All real numbers less than or equal to -7

• All real numbers less than or equal to 0

Based on the table, which function can best be used to model this situation?

• h(t) = 99t² + 858

• h(t) = -4.9t² + 295t + 0.6

• h(t) = -4.9t² + 295t + 2

• h(t) = 99t² + 1,470.3