The following graph illustrates the demand and marginal revenue curve (D=MR) of a perfectly competitive firm. Suppose that when the firm produces 70 units, its average variable cost equals $30 per unit and its average total cost equals $55 per unit. Use the green rectangle (triangle symbols) to plot the total cost of producing 70 units. Next, use the grey rectangle (star symbols) to plot the total variable cost of producing 70 units. Then, use the tan rectangle (dash symbols) to plot the total revenue at 70 units. Finally, use the purple rectangle (diamond symbols) to plot the profit or loss at 70 units.
The following graph illustrates the demand and marginal revenue curve (D=MR) of a perfectly competitive firm. Suppose that when the firm produces 70 units, its average variable cost equals $30 per unit and its average total cost equals $55 per unit. Use the green rectangle (triangle symbols) to plot the total cost of producing 70 units. Next, use the grey rectangle (star symbols) to plot the total variable cost of producing 70 units. Then, use the tan rectangle (dash symbols) to plot the total revenue at 70 units. Finally, use the purple rectangle (diamond symbols) to plot the profit or loss at 70 units.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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
Transcribed Image Text:The following graph illustrates the demand and marginal revenue curve (D=MR) of a perfectly competitive firm.
Suppose that when the firm produces 70 units, its average variable cost equals $30 per unit and its average total cost equals $55 per unit.
Use the green rectangle (triangle symbols) to plot the total cost of producing 70 units. Next, use the grey rectangle (star symbols) to plot the total
variable cost of producing 70 units. Then, use the tan rectangle (dash symbols) to plot the total revenue at 70 units. Finally, use the purple rectangle
(diamond symbols) to plot the profit or loss at 70 units.
PRICE AND COST (Dollars)
100
90
80
70
60
50
40
30
20
10
0
O
10 20
30
40 50 60
QUANTITY (Units)
+ATC
+ AVC
70
D=MR
80 90
100
Total Cost
Total Variable Cost
Total Revenue
Profit or Loss
?
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