The following table shows the average cost and average revenue (price) for a firm at each level of output.

Output	1	2	3	4	5	6	7	8	9	10
AC (£)	7.00	5.00	4.00	3.30	3.00	3.10	3.50	4.20	5.00	6.00
AR (£)	10.00	9.50	9.00	8.50	8.00	7.50	7.00	6.50	6.00	5.50

(a) Construct a table to show TC, MC, TR and MR at each level of output (put the figures for MC and MR mid-way between the output figures).

(b) Using MC and MR figures, find the profit-maximising output.

(c) Using TC and TR figures, check your answer to (b).

(d) Plot the AC, MC, AR and MR figures on a graph.

(e) Mark the profit-maximising output and the AR and AC at this output.

(f) Shade in an area to represent the level of profits at this output.