Functions Study Guide

Does the following set of ordered pairs represent a function?

{ (6, 3) , (7, 3) , (8, 4) , (9, 2) }

• Yes, every input has only one output

• Yes, the inputs have more than one output

• No, the inputs have the same outputs

• No, they don't pass the vertical line test

Is this graph a function?

• No, it does not pass the vertical line test

• Yes, it passes the vertical lines test

Does this graph represent a function?

• Yes, it passes the vertical line test

• No, it does not pass the vertical line test

Does this graph represent a function?

• No, it does not pass the vertical line test

• Yes, it passes the vertical line test

For the function

f(x) = -2x – 4

if x=-2

• -4

• -8

• 0

• +4

For the function f(x) = -2x – 4 ,

if x= -1

• -2

• 2

• 4

• -4

What other terms can be used for the word DOMAIN? Select all correct answers.

• input

• dependent

• y value

• range

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function