Identifying Linear Functions

Is this function linear or non linear?

• Linear

• Non Linear

Answer explanation

The input has a constant rate of change of 1

The output has a constant rate of change of 2

Which graph is linear?

• A

• B

• C

• D

Answer explanation

The graph of a linear function is a straight line.

Is the function linear or nonlinear?

• Linear Function

• Non Linear Function

Is this function linear or nonlinear?

• Linear

• Non linear

Is this function linear or nonlinear?

• Linear

• Non Linear

Answer explanation

The y values do not increase by a constant amount.

Is the relation a function?

• Function

• Not a Function

Answer explanation

There are no repeating x values

Is the relation a function? If so, is it linear?

• Not a Function

• Linear Function

• Non Linear Function

What is the slope of the line?

• $-\frac{1}{3}$

• 3

• -3

• $\frac{1}{3}$

Which animal is best?

• Cats

• Dogs

• Lizards

• Penguins

Is this the formula for slope?

 $m=\frac{\left(y_2-y_1\right)}{\left(x_2-x_1\right)}$  

• Yes

• No