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20. The table shows the numberof days you keep a rented movie before returning it and the total cost of renting the
movie. Find the rate of change in cost with repect to time and interpret its meaning.
Time (days)
4
5
6
Cost (dollars)
6.00
8.25
10.50

Sagot :

Mhanifaidn

Step-by-step explanation:

According to given table we have pairs of points:

  • (4, 6.00), (5, 8.25), (6, 10.50)

The rate of change is:

  • (8.25 - 6.00)/(5 - 4) = 2.25

or

  • (10.50 - 8.25)/(6 - 5) = 2.25

It is 2.25 and the meaning is:

  • Rental per day is $2.25
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