WANEFMAC7 11.2.013. MY NOTES 13. [-/11 Points] DETAILS Your college newspaper, The Collegiate Investigator, sells for 90c per copy, The cost of producing x copies of an edition is given by C(x) = 80 + 0.10x + 0.001x dollars. (a) Calculate the marginal revenue R'(x) and profit P'(x) functions. HINT [See Example 2.] R'(x) = P(x) = (b) Compute the revenue and profit, and also the marginal revenue and profit, if you have produced and sold 500 copies of the latest edition. revenue profit marginal revenue per additional copy marginal profit per additional copy Interpret the results. The approximate -Select V|from the sale of the 501st copy is $ (c) For which value of x is the marginal profit zero? X = copies Interpret your answer The graph of the profit function is a parabola with a vertex at x so the profit is at a maximum when you produce and sell copies. Need Help? Read It