# Marginal cost is A. all the costs of production of goods. B. all the costs of the fixed inputs....

## Question:

Marginal cost is

A. all the costs of production of goods.

B. all the costs of the fixed inputs.

C. the change in the total cost resulting from a one-unit change in output.

D. all the costs that vary with output.

## Marginal Cost

Marginal cost is equal to marginal revenue at the point where a firm's profit maximizes. A firm in perfect competition has its supply curve equal to marginal cost at each point above its variable cost.

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Chapter 3 / Lesson 12What is marginal cost? Learn how to calculate marginal cost with the marginal cost formula. See the definition, behavior, and marginal cost examples.

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