# Quiz_109 - 105 Answer :i

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105) Use the general relationship between marginal and average values to explain why a marginal cost curve must intersect an average total cost curve and an average variable cost curve at their minimum points. Answer: The relationship between marginal and average values can be stated as follows: if the marginal value is below the average value for a variable, it pulls the average value down and if the marginal value is above the average value, it pulls the average value up. Applying this to cost curves, if average total cost is falling, marginal cost must lie below average total cost. If average total cost is rising, marginal cost must lie above average total cost. Therefore, the marginal cost curve must intersect the average total cost curve at its minimum point. The same principle applies to the average variable cost curve. Diff: 2 Page Ref: 366 - 367/366 - 367 Topic: Cost Curves Learning Outcome: Micro 12: Apply methods for measuring and analyzing the effects of inputs and costs on the supply curve AACSB: Reflective Thinking Figure 11 - 5 106) Refer to Figure 11 - 5 above to solve the following problems. a. Calculate the fixed cost of production. b. Calculate the average total cost of production when the firm produces 20 units of output. c. Calculate the average variable cost of production when the firm produces 20 units of output. d. Calculate the average fixed cost of production when the firm produces 20 units of output. e. Calculate the average fixed cost of production when the firm produces 15 units of output. f. If the firm increases output from 15 to 20 units what is the marginal cost of output? Answer: a. \$100 b. \$22.5 c. \$17.5 d. \$5 e. \$6.67 f. \$14 Diff: 3 Page Ref: 366 - 367/366 - 367 Topic: Cost Curves Learning Outcome: Micro 12: Apply methods for measuring and analyzing the effects of inputs and costs on the supply curve AACSB: Analytic Skills 33 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.  #### You've reached the end of your free preview.

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• Fall '13
• Harshad number, AACSB, Page Ref, average total cost
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