A charter flight charges a fare of per person, plus per person for each unsold seat on the plane. If the plane holds passengers and if x represents the number of unsold seats, find the following.
(a) A function defined by that describes the total revenue received for the flight. (Hint: Multiply the number of people flying, by the price per ticket, .)
(b) The graph of the function from part (a).
(c) The number of unsold scats that will produce the maximum revenue.
