Your cellular phone contract calls for a flat monthly service charge of $10.95 plus $0.12 per minute for calls within a certain
area to which you limit your calls. the table shows some cost data for your use of the phone.
|number of minutes
100
120
140
160
monthly cost (dollars)
22.95
25.35
27.75
30.15
does the data represent a linear function? why or why not?
a. no, the average rate of change is not c. there is not enough information to determine if
constant
this is a linear function.
b. yes, the average rate of change is constant. d. no, this is not a linear function
select the best answer from the choices provided