Please help me$,$ I am stuck. Step $1$: The graph shows the demand $($D$),$ marginal cost $($MC$),$ marginal revenue $($MR$),$ and average variable cost $($AVC$)$ curves for a firm that is a price maker for its product. The MC and AVC curves slope upward because of limited space and resources for production activity: To increase output, the firm must bring older, less$-$reliable equipment out of storage, pay its workers extra for overtime hours, and so on$.$

Step $2$: $($Refer to the graph$)$ If the firm is able to practice price discrimination, using the two prices indicated by the two points indicated on the demand curve, use the area tool to outline the region that represents the net revenue $($revenue minus production costs, but ignoring fixed costs$).$ The lower boundary of the region should be slanted, and you should use the area tool only once to outline the area.

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