Unit 3 Exam 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 relation a function?

• Function

• Not a function

Is this relation a function?

• Function

• Not a function

• Function
• Not a Function

Identify the domain of the following relation:
Remember domain is the "x" values

• -6, 14, 2, 28
• (-6,14), (0,32), (2,38), (4,44)
• -6, 0, 2, 4
• 14, 32, 38, 44

What is the range?

• {-2,2,5}
• {1,3,5,6}
• all real numbers 
• -2<y<5

If f(x)=-3x-8, find f(-1)

• f(-1)=5

• f(-1)= -12

• f(-1)= -5

• f(-1)= -10

From the table, is the function Linear or Nonlinear?

• Linear
• Nonlinear

The table represents a function. Is it linear or non-linear?

• Linear
• Nonlinear