Functions Review

Is the relation shown above a function?

• yes, a circle is a shape therefore it is a function

• no, it fails the vertical line test

• yes, each x has a y value

• no, y-values are repeating

Tags

CCSS.HSA.REI.D.10

• Choice 1

• Choice 2

• Choice 3

• Choice 4

Tags

CCSS.8.F.A.1

If  $f\left(x\right)=4x+5$  what is the value of  $f\left(-3\right)$  

• -2

• -7

• 17

• 2

Tags

CCSS.HSF.IF.A.2

Find f(-3)

• 6

• 2

• -2

• -4

Tags

CCSS.HSF.IF.A.2

If $g\left(x\right)=-4x^{2\ }-3x+2$   find  $g\left(-2\right)$  

• -8

• 24

• -30

• 12

Tags

CCSS.HSF.IF.A.2

If $f\left(x\right)=\frac{\sqrt{2x+3}\ }{6x-5}$   find  $f\left(\frac{1}{2}\right)$  

• 1

• -1

• -2

•  $-\frac{13}{3}$  

Tags

CCSS.HSF.IF.A.2

What point could be used to find $f\left(2\right)$  

• A

• B

• C

• D

Tags

CCSS.HSF.IF.A.2

The domain of this function is:

• all positive real numbers

• all positive integers

•  $x\ge0$  

•  $x\ge-1$  

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the relation shown below:

{(1,2), (0,-2), (4,4), (0,5)}

• 0, 1, 4

• -2, 2, 4, 5

• -2, 0, 1, 2, 4, 5

•  $\infty$  

Based on this graph, the relation is

• a function because it passes the horizontal line test

• a function because it passes the vertical line test

• not a function because it fails the horizontal line test

• not a function because it fails the vertical line test

Tags

CCSS.HSF.IF.A.1