Question

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?

Answer 1

Total minutes of talk time
Monthly cost of cell phone
0
$19.95
10
$20.45
20
$20.95
30
$21.45
40
$21.95
The average rate of change is $0.50, meaning that for each minute of talk time, the monthly bill increases by $0.50.

The average rate of change is $0.50, meaning that for every ten minutes of talk time, the bill increases by $0.50.

The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases by $0.05.

The average rate of change is $0.05, meaning that for every ten minutes of talk time, the bill increases by $0.05.

Answer 2

@200205650
@AnimalLover8
@xamr

Answer 3

B

Answer 4

Explain? D:

Answer 5

It was wrong :(

Answer 6

rate of change = 0.50 / 10

Answer 7

So it would be D?

Answer 8

for every 10 minutes the charrge increase by 0.50

Answer 9

No

Answer 10

rate is per minute

Answer 11

try to solve for the slope :) use x = time, y = cost

Answer 12

you know, you have to check it out
per 10 there is an increased of 0.50 dollars
if that were the case, you have a base price
y = 0.05x + 19.95

Answer 13

i'm so confused

Answer 14

Oh wait.... per minute? I'm sorry.