Test #1 Review

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this table a function or not a function? 

• Function
• Not a Function

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

What two animals received the same amount of votes?

• Alligators

• Penguins

• Zebras

• Bears

How many more belts were bought than sweaters?

• 5

• 8

Evaluate the following expression:
-x - 6x + 10 when x = 5

• -20
• -25
• 25
• 20

Evaluate the following expression:
25x(x - 4) when x = -1

• 100
• 115
• 125
• 130

Evaluate the expression when m = 5

m² + 4

• 9

• 14

• 21

• 29

• -3

the product of 15 and x

• 15x
• x/15
• 15/x
• 15-x