Representations of a Linear Function

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

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

• Linear

• Nonlinear

Which function is linear?

• y = 2x + 4

• y = 2x² + 4

• y = 2x(4 − 3x)

• xy = 15

Is this graph a function or not a function? 

• Function

• Not a Function

A bathtub drains at a rate of 3 gallons per minute. The function is graphed on the left.

x represents the number of ​ (a)  

y represents the number of ​ (b)   ​

• minutes

• gallons of water remaining in the bathtub

A crane is lowering a concrete block from a height of 270 feet above the ground at a constant rate of 2.5 feet per second. Which function can be used to determine h, the height, in feet, above the ground of the concrete block after s seconds?

Click on picture for question.

• A

• B

• C

• D

Jerry has $20 and makes $7 per hour. Which function represents the total amount of money Jerry has after working x hours?

• p(x) = 7x + 20

• p(x) = 7 + 20x

• p(x) = 20 + 7

• A

• B

• C

• D

Is the representation linear or non-linear? 

• Linear

• Non-Linear