celestialflames15
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Please help, very hard question (for me), Will give Brainliest!!!

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 $9.95
10 $10.65
20 $11.35
30 $12.05
40 $12.75

A.) The average rate of change is $1.30, meaning that for each minute of talk time, the monthly bill increases by $1.30.

B.) The average rate of change is $0.07, meaning that for each minute of talk time, the monthly bill increases by $0.07.

C.) The average rate of change is $1.30, meaning that for every ten minutes of talk time, the monthly bill increases by $1.30.

D.) The average rate of change is $0.07, meaning that for every ten minutes of talk time, the monthly bill increases by $0.07.

Respuesta :

boredumps
The answer is D. This is because when you take 10.65 and subtract 9.95 from it you get 0.07. If you take this number and continuously add to 9.95 you get the numbers provided in the chart. We'll also notice that the 0.07 is only added after 10 minutes of talking (10,20,30,etc.).

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