A brand new vehicle costs $25,399. It decreases in value by 8.5% each year after its purchase. Which function models the value of the vehicle in dollars x years after its purchase?

f(x)=1.085(25,399)x

f(x)=25,399(1.085)x

f(x)=0.915(25,399)x

f(x)=25,399(0.915)x