The price-demand and cost functions for the production and sales of z Mini-Vacs are given as p(z) = 50 - .25z and C(z) = 250 + 5z. The price per Mini-Vac p(z) and the cost C(z) are in dollars.
a. Find the revenue function in terms of z.
R(z) =
b. Find the profit (or loss) earned at an output of 20 Mini-Vacs.
c. On your own, graph revenue and cost on the graph below. Be sure to mark the scale on both axes (fit it to Revenue, which you should graph first), label: y = R(z), y = C(z), the break-even points, the z-intercepts of y = R(z), and the y-intercept of y = C(z).
d. According to your graph, what is the maximum revenue and at what output level does it occur?
Maximum revenue is $ at z =