Find the rate of change for the data in the tables a unit rate. part 2 what does the rate of change mean in this exercise.

Question

hours:        3             5        7 

 

earnings: 20.25    33.75     47.25

 

 

 

Answer 1

The formula that gives you these results is:

hours x () = earnings                   () - rate of change

hours x () = earnings

() = earnings/hours

() = 20.25/3 = 6.75 

() = 33.75/5 = 6.75

() = 47.25/7 = 6.75

 

part 2 () is the rate of change and would be call the pay rate