In: Economics
1. Consider the following table of costs facing a firm in a competitive market:
| Quantity of Output | Total Costs | ||||
| 0 | 5 | ||||
| 1 | 11 | ||||
| 2 | 17 | ||||
| 3 | 21 | ||||
| 4 | 26 | ||||
| 5 | 33 | ||||
| 6 | 43 | ||||
| 7 | 55 | 
a. If the price in the market is $7 per unit, how much will the firm choose to produce? Use a comparison of marginal revenue and marginal cost to determine the answer. What will the profit (or loss) be in this scenario?
b.Sketch a graph of the marginal revenue and marginal cost curves, and indicate the profit-maximizing level of quantity produced on your graph.
a) Marginal cost = Change in Total cost / Change in Quantity
Marginal revenue = Change in Total revenue / Change in Quantity

Profit maximising price is $ 7 and quantity is 5. Profit = TR - TC = 35 - 33 = $ 2.
b)

