Relations and Functions

Relations and Functions

Multiple Choice

Which is an example of a relation?

• 2x+y=3

• (2,1),(3,4),(5,7)

• x=4

Multiple Choice

State the domain of the relation:

(-1,0),(2,1),(3,8),(4,19)

• D={0,1,19,8}

• D={-1,2,8,19}

• D={-1,2,3,4}

Multiple Choice

State the Range of the relation:

(-1,0),(2,1),(3,8),(4,19)

• R={0,1,8,19}

• R={-1,2,8,19}

• R={-1,2,3,4}

Multiple Choice

Determine if the following relation is a function.

(0,1),(2,3),(4,7),(8,9)

• Function

• Not a function

Multiple Choice

Determine if the following relation is a function.

(-3,1),(-2,2),(-2,7),(-6,10)

• Function

• Not a function

Multiple Choice

If f(x)=2x-3 find f(4)

• f(4)=2

• f(4)=5

• f(4)=3

Multiple Choice

Find f(3) for the given function.

 $f\left(x\right)=x^2-2$  

• f(3)=7

• f(3)=4

• f(3)=1

Multiple Choice

Using the vertical line test. Is this a function?

• Yes

• No

Multiple Choice

Using the vertical line test. Is this a function?

• Yes

• No