Linear Functions, Tables and Graphs

f(x)=4x+5
f(4)=

• 21

• -11

• -31

• 25

The deli in the grocery store gives each customer a free cup of coffee worth $1.50.  Write a function to represent the situation.

• y = 1.5x

• y = 15x

• x = 1.5y

• x = 15y

Is the relation a function?

• yes, it is a function

• no, it is not a function

• not enough information to determine

Does this table represent a function?

• Yes 

• No

Is function represented by the table linear or nonlinear?

• linear

• nonlinear

Is this graph a linear or nonlinear function?

• nonlinear

• linear

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Is function represented by the table linear or nonlinear?

• linear

• nonlinear

Is this function linear or nonlinear?

• Linear

• Nonlinear

Is this function linear or nonlinear?

• Linear

• Nonlinear