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.f(x)=(0.92 112 ) 12t
Which equals f(x)=0.993 12t

2. f(x)=(0.92 152 ) 52t
Which equals f(x)=0.998 52t

3.f(x)=(0.92 1365 ) 365t
Which equals f(x)=0.999 365t

4.The shorter the time interval, the less visible the depreciation of Sara's car

Answer 2

Oh I forgot to put the multiplication signs in. The numbers in the parenthesis are multiplied.

Answer 3

Thank you

Answer 4

No problem.