An airline has a new plane with 120 seats and a new route from Panama City, FL to New York City, NY. The function table models the profit the airline makes, where x is the cost per seat. The table of values for function f(x) is shown. 50, 1,272 55 1,884.5 60 2,322 65 2,584.5 70 2,672 75 2,584.5 80 2,322 Which of the following is the equation of f(x) in standard form.​