Final answer:
To calculate the total revenue, marginal revenue, total cost, and marginal cost for each output level, we can create a table. The profit-maximizing quantity of output is the level at which marginal cost equals marginal revenue.
Step-by-step explanation:
To calculate the total revenue, marginal revenue, total cost, and marginal cost for each output level, we can create a table:
Output LevelTotal RevenueMarginal RevenueTotal CostMarginal Cost1$20$20$40$202$40$20$45$53$60$20$55$104$80$20$70$155$100$20$100$30
The profit-maximizing quantity of output is the level at which marginal cost equals marginal revenue. In this case, it occurs at an output level of 4 units. On the diagram, the total revenue curve would start from the origin and increase steeply, while the total cost curve would start from the fixed cost and increase gradually. The marginal revenue curve would be a straight line parallel to the quantity axis, and the marginal cost curve would start from the initial marginal cost and increase gradually.