7) The fee for charging an electric car at Station A is $2 to start, and then $4 for each hour or fraction of an hour. The fee for charging an electric car at Station B for x hours is modeled by the function f shown below. Which
station, A or B, costs less to charge a car for 4 hours? What is the fee for charging a car for 4 hours at that
station?
f(x) = {3x ***, 358524
0 Cheaper Station:
Fee at the chosen Station: