Marcos purchased a sail boat for $56,900. He anticipates each year the boat will decrease in value by 8.1% from the previous year. Write an exponential function that models the value in dollars of the boat x years after Marcus's purchase.

Question 18 options:

f(x)=0.919(56900)x

f(x)=56900(0.919)x

f(x)=0.081(56900)x

f(x)=56900(0.081)x