F is a function that relates the price of a product to the revenue it will generate. If a price of $5 corresponds to $8, 000 in revenue, which of the following correctly shows this relation using function notation? Select the correct answer below:
a. F(x)=8,000x+5
b. F(x)=5x+8,000
c. F(8,000)=5
d. F(5)=8,000