Test Review#3:Functions

f(2)=9

Which of the following is true about the relation above? 

• 9 is the input

• 2 is the input.

• 2 is the output

• 9 is the domain

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is another name for input of a function?

• Height

• Range

• Y-coordinate

• Domain

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• 18

• 17

• 16

• 15

Tags

CCSS.HSF.IF.A.2

What line is use test whether or not a relation is a function?

• Horizontal Line Test

• Vertical Line Test

• Mapping Diagram

• X-Coordinate

 $g\left(x\right)=-7x+4,\ find\ g\left(-2\right)$  

• -10

• 10

• -12

• 18

Tags

CCSS.HSF.IF.A.2

Which of the following statement is true?

• This is relation is mapping diagram.

• The table of values is a function.

• All x-values have its distinct y-values.

• The relation is not a function because there is a repeated input value/

Tags

CCSS.8.F.A.1

• (-5,10]

• [-5,10)

• (-5,10)

• [-5, 10]

If f(x)= 2x+8 and f(x)=10. What is the value of x?

• x=1

• x=4

• x=6

• x=8

Tags

CCSS.HSF.IF.A.2

Based on the following graph, what is the value of f(2)?

• f(2)= 0

• f(2)=-1

• f(2)=5

• f(2)=-5

Tags

CCSS.HSF.IF.A.2

What is the value of x when f(x)=0

• x= {0, -2, 2}

• x= {-5, -2, 2}

• x= {-4, -2, 2}

• x= {1, -2, 3}