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? (1 point)
total minutes of talk time monthly cost of cell phone
0 $9.95
10 $10.65
20 $11.35
30 $12.05
40 $12.75
1. the average rate of change is $1.30, meaning that for each minute of talk time, the monthly bill increases by $1.30.
2. the average rate of change is $0.07, meaning that for each minute of talk time, the monthly bill increases by $0.07.
3. the average rate of change is $1.30, meaning that for every ten minutes of talk time, the monthly bill increases by $1.30.
4.the average rate of change is $0.07, meaning that for every ten minutes of talk time, the monthly bill increases by $0.07.