Question

Suppose that the manufacturing cost of a personal digital assistant (PDA) is approximated by Mix,y) = 42x? +35y? - 25xy + 50 where x is the cost of electronic chips and y is the cost of labor. Find the following. (a) M (5,3) (b) M,(3,6) OM OM (c) (5,6) (d) dx (5.7) ayl Mxx.y) (42X +3y - 2xy +50) 84X - 2by dx Now substitute 3 for x and 6 for y in M, (x,y). M.(3,6) - 102 OM (c) Recall that M, (x,y) = 84x - 25y. Now substitute for x and 6 for yin xx.y) дм (5.6) - dx dM (d) Recall that M, (x.y) = 70y - 25x. Now substitute for x and 7 for y in ay (x,y) OM (5.7)- x (u) More

Answer 1