Unit 7 Test Corrections

What are the x-intercepts of the following quadratic function?

• x = 1 and x = 3

• x = 1 and x = -3

• x = -1 and x = -3

• x = -1 and x = 3

Tags

CCSS.HSF-IF.C.7A

A part of quadratic function f is graphed on the grid. What is the domain of the part of the function shown?

• All real numbers greater than or equal to -1.

• All real numbers greater than or equal to 1.

• All real numbers.

• All real numbers greater than or equal to -1 and less than or equal to 5.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The graph of a quadratic function is shown on the grid. Which statement is best supported by the graph?

• The function has a zero at 6.

• The minimum value of the function is 9.

• The vertex of the graph is (9,-3).

• The equation of the axis of symmetry of the graph is x = -3.

Tags

CCSS.HSF-IF.C.7A

Quadratic function f has vertex (4,15) and passes through the point (1,20). Which equation represents f?

Tags

CCSS.HSA.APR.B.2

• All real numbers

• All real numbers greater than or equal to 25

• All real numbers greater than or equal to 10

• All real numbers greater than or equal to 13

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

• 27

• -13

• -15

• 140

Tags

CCSS.HSF.IF.A.2