Functions Test

Given that h(x)=x³-2, evaluate h(4)

• 62

• 10

• 64

• 12

Which statement is true about the relation {(-2, 4), (4, 2), (2, 4), -4, 2)}?

• The relation is NOT a function because all the y-values are not different.
• The relation is NOT a function because all the x-values are not different.
• The relation is a function because the y-values are different.
• The relation is a function because all the x-values are different.

Which of the following relations represents y as a function of x?
I. {(1, 4), (2, 5), (3, 6)}
II. {(1, 4), (2, 4), (3, 4)}
III. {(1, 4), (2, 4), (1, 3)}
IV. {(1, 4), (1, 2), (1, 3)}

• I, II, and III only
• II and IV only
• III and IV only
• I and II only

Which of the graphs shown is a function?

• F
• G
• H
• J

If f(x) = 3x - 7, find f(4).

• 0
• 5
• 14
• 19

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 this mapping a function or not a function? 

• Function
• Not a Function

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

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.