Unit 7 Assessment Review Functions

How can I identify a function?

• Always linear

• One input for every output

• One output for every input

• Never linear

Which set of ordered pairs in a function?

• (0, 3) (1, 3) (2, 3), (3, 3)

• (5, 1) (4, 1) (5, 2), (3, 1)

• (2, 9) (-5, 5) (2, 7) (-5, 9)

• (4, 3) ( 5, 4) (3, 2) (5, 6)

What does f(2) represent?

• The function f of the input 2

• Multiplication of f and 2

• The function of the output 2

• The function of the output of y

Evaluate the function g(h)=2h−9 if h is 6

Hint: 2(6)-9

• 12

• 3

• 9

• 6

• This is a Function
• This is Not a Function

Look at the table.

Is the relation a function?

• Yes

• No

Which of these relations is a function?

• 
• 
• 
• 

• This IS a Function
• This is NOT a Function
• This is a linear function
• This is a toaster oven

• It is a function because no vertical lines hit it twice.
• It's not a function because a vertical line hits it twice.
• It's not a function because no vertical lines hit it twice.
• It is a function because a vertical line hits it twice.

How do I know that the ordered pairs in a table represent a function?

• x will not repeat

• y will not repeat

• the number will get larger

• the number will get smaller