Note: A= 22 , B= 2594 , C= 594 , D= 94 , E= 4 ------------------------------------------
1) An electronic manufacturing firm has the profit function P(x) = -B/A x³ + D/A x² - ADx + A, and revenue function R(x) = A x³ - B x² - Dx + AD, for x items produced and sold as output.
a. Calculate the average cost for 1200 items produced and sold (12Marks)
b. Calculate the marginal cost when produced 800 items