Comparing Functions Linear or Not

The graph of this function is a straight line. 

• Linear

• Exponential

• neither

What type of function is this equation:
y= -3x + 12

• Linear

• Exponential

• Neither

Who has the greater rate of change?

• Smith has the greater rate of change with 5/4

• Harmon has the greater rate of change with 7/2

• Smith has the greater rate of change with 4/5

• They have the same rate of change.

This function has the same rate of change. 

• Linear

• Exponential

• Neither

• The functions have the same y-intercept

• The functions have a positive slope

• The functions have the same slope

• The functions are both linear

Which statement is true?

• A

• B

• C

• D

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

• Beth's service ($38 vs. $40) is cheaper

• Nate’s service ($42 vs. $44) is cheaper

• Nate’s service ($38 vs. $40) is cheaper

• Beth's service ($42 vs. $44) is cheaper

Two linear functions are shown below. Which function has the greater initial value?

• Function A

• Function B

Two arcades charge an entrance fee and a fee per game. At Arcade A, the total cost y (in dollars) of playing x games is represented by the linear function y = 0.5x + 6 . The table shows the total cost for playing x games at Arcade B. Determine which arcade is described by each phrase below.

Groups:

(a) Arcade A

,

(b) Arcade B

• higher fee per game

• higher entrance fee

• higher cost for 12 games

• A

• B

• C

• D