Question

Consider the exponential function f ( x ) = 13 , 500 ⋅ 0.89^x, which models the value of Mikayla's scooter, where x represents the number of years since she purchased the scooter.

What is the value of Mikayla's scooter after 4 years? Explain.

Answer 1

Answer: $8470

Explanation:

To solve this, you can substitute 4 for x:

`f(x) = 13500*.89^4\\f(x) = 13500*0.6274\\f(x) = 8470`

Mikayla's scooter is worth around $8470 after 4 years.

It was originally worth 13,500 dollars and depreciated by 11% every year.