3.1-3.4 Functions Practice

Is this mapping a function or not a function? 

• Function
• Not a Function 

• Function
• Not a Function

• Function
• Not a Function

If f(x) = 2x + 5, find f(-3).

• 1

• -1

• 4

• -4

Evaluate f(x)= 2x² + 5x - 17 for f(-1)

• -20

• -10

• -24

• -14

Is this function linear or nonlinear?

• Linear

• Nonlinear

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Is this function linear or nonlinear?

• Linear function

• Nonlinear function

Which answer choice is true?

• The table represents a linear function because there is a pattern for the x-coordinates and y-coordinates.
• The table represents a linear function because the ratio of the change in the y value and the change in the x value is constant.
• The table represents a nonlinear function because the ratio of the change in the y value and the change in the x value is not constant.
• The table does not represent a function because there is more than one output for at least one input.

f(x)=x+3

f(-5) = ?

• -2

• -1

• -8

• 7