Question

Sara's new car depreciates 8% each year.

1.Write an exponential function to model the depreciation each month.
2.Write an exponential function to model the depreciation each week.
3.Write an exponential function to model the depreciation each day.
4.What relationship is there between the amount of depreciation and the time interval measured?

Answer 1

1.) Monthly depleciation f(C) = (0.08/12)C = 0.0067C; where C is the cost of the car.

2.) Weekly depreciation f(C) = (0.08/52)C = 0.0015C

3.) Daily depreciation f(C) = (0.08/365)C = 0.0002C