A brand new SUV is purchased in 2020 for $54,300. The owner plans on
upgrading to a new vehicle in 5 years. Based on trends, the SUV is expected to depreciate at a rate of 14.3% each year.

Write a function, f(x), which models the value of the SUV X years after 2020.

a. f(x) = 54,300 -0.143x
c. f(x) = 54,300+0.143x
b. f(x) = 54,300 (0.857)
d. f(x) = 54,300 ( 1.143 )