Which of the following is a linear demand function?
A. Qxd = ?0 + ?XPX2 + ?YPY2 + ?MM2 + ?MH2.
B. Qxd = ?PX?X PY?Y M?M H?H.
C. Qxd = ? + ?X log PX + ?Y log PY + ?M log M + ?M log H.
D. Qxd = ?0 + ?XPX + ?YPY + ?MM + ?HH.
Answer: D
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a. increase profits. b. leave profits unchanged. c. decrease profits. d. increase marginal revenue.
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