The market demand curve has the following equation: P = 6 Q

plot a diagram showing the firms average revenue and marginal revenue.

Quantity	Price	Total Revenue (P*Q)	Average Rev. (TR/Q)	Marginal Rev. (TR/Q)
0	6	0	0	0
1	5	5	5	5
2	4	8	4	3
3	3	9	3	1
4	2	8	2	-1
5	1	5	1	-3

Add a typical-looking marginal cost and average cost curve to the diagram (or draw a new diagram including the cost curves). Show the monopolists profit-maximizing quantity to produce, the market price given that quantity, and the profit that the firm will earn. (No need to calculate precise numbers, just illustrate on the diagram. Label these clearly.) Explain how the monopolist firm chooses its profit-maximizing price and quantity. Is it possible for the firm to sustain this profit in the long-run?

Assume the market supply curve can be represented by the firms marginal cost curve. In either the same diagram or a new diagram (whichever you prefer), label consumer and producer surplus under a competitive equilibrium and in the situation with the monopoly. Label the deadweight loss.

Given that a monopoly does not face competition from other firms, why cant it charge any price it wants for the good it produces? Or put slightly differently, if a monopoly decides to charge a certain price, what force determines how much quantity it can sell at that price?