Question: In buying a new car, one consideration might be how well the price of the car holds up over time. Different makes of cars have
In buying a new car, one consideration might be how well the price of the car holds up over time. Different makes of cars have different depreciation rates. One way to compute a depreciation rate for a car is given here. Suppose that the current prices of a certain automobile are as shown in the table.

Use the formula New = Old(eRt) to find R, the annual depreciation rate, for a specific time t. When might be the best time to trade in the car? Consult the NADA ("blue") book and compare two like models that you are interested in. Which has the better depreciation rate?
Age in Years 3 New 4 $28,750 $25,400 $38,000 $36,600 $32,400 $21,200
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Age 1 2 3 A Depriciation rate 38000 36600e R 1 38000 36600 R In In R In In 38000 32400 R ... View full answer
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