CIA #8

What are the solutions of x² - 7x + 10 = 0

• x = -2 and x = -5

• x = 2 and x = 3

• x = -6 and x = 1

• x = 5 and x = 2

Tags

CCSS.HSA-REI.B.4B

Which of the following quadratic functions has a maximum at the point (-7, -3)?

• f(x) = 2(x - 7)² - 3

• f(x) = 2(x + 7)² + 3

• f(x) = -2(x + 7)² - 3

• f(x) = -2(x - 7)² + 3

What is the correct factorization of 4x²+ 4x - 35?

• (4x + 5) (x - 7)

• (2x - 5)(2x + 7)

• (2x + 35)(2x - 1)

• (2x + 5)(2x - 7)

Find the value of "c" that makes the trinomial below a perfect square. x² + 22 + c

• c = 484

• c = 11

• c = 121

• c = 22

Tags

CCSS.HSA-REI.B.4B

For the function y = x² + 4x - 7, what is the vertex?

• (2, 5)

• (-4, -7)

• (-2, -11)

• (-2, 11)

What is the average rate of change over the interval [4, 6]?

• 4

• 8

• 10

• 16

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Graph f(x) = 2x² + 2x - 2 . Identify the axis of symmetry and the vertex.

• 
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• 
• 

Tags

CCSS.HSF-IF.C.7A

Which of the following is the correct vertex form for the function f(x) = x² - 6x + 4

• f(x) = (x + 3)² - 5

• f(x) = (x + 3)² + 5

• f(x) = (x - 3)² - 5

• f(x) = (x - 3)² + 5

Which of the parabolas opens downward?

• y = -10x²

• y = (x + 6)²

• y = 4(x + 5)² - 2

• y = (x - 6)²

Tags

CCSS.HSF-IF.C.7A

Consider the quadratic function whose graph is shown. what is the average rate of change of f(x) over the interval [2,6]?

• 2

• -2

• 1/2

• -1/2

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6