What is the average cost of a cell phone plan
Asked by admin @ in Mathematics viewed by 279 People
A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40-minute time of talk?
Total minutes of talk time Monthly cost of cell phone
0 $14.95
10 $15.95
20 $16.95
30 $17.95
40 $18.95
A) The average rate of change is $1.00, meaning that for every ten minutes of talk time, the monthly bill increases by $1.00.
B) The average rate of change is $1.00, meaning that for each minute of talk time, the monthly bill increases by $0.10.
C)The average rate of change is $0.10, meaning that for every ten minutes of talk time, the bill increases by $0.10.
D)The average rate of change is $0.10, meaning that for each minute of talk time, the monthly bill increases by $0.10.