The graphs of the revenue, R (@), and cost function , C (x), for the production and sale of & units are shown below. The cost function is the straight line, and the revenue function is the curve. 50000 40000 30000 20000 10000 1 (0 5000) 50(01 0) R(X) 0 10, 0) 200 400 600 800 1000 a. Use the graph to estimate the production level & that maximizes profit. You may assume the r value for the maximum profit is a multiple of 5. I = units b. What are the points (, C (x)) and (x, R (x)) on the graphs of the cost and revenue functions corresponding to the value of c that maximizes profit? (z, C(x)) = (x, R(x)) c. What is the maximum profit? $ d. If the cost per unit decreases, should the production level be raised or lowered to maximize profit? raised lowered kept the same O O O