Given the following total-revenue function:
TR = 9Q - Q2
(1) Derive the total-revenue, average-revenue, and marginal-revenue schedules from Q = 0 to Q = 6 by 1s
(2) On the same set of axes, plot the total-revenue, the average-revenue, and the marginal-revenue schedules of part (a)
(3) With reference to your figure in part (b), explain the relationship among the total, average, and marginal revenue curves.