A company manufactures and sells video games. A survey of video game stores indicated that at a price of $84 each, the demand would be 400 games, and at a price of $34 each, the demand would be 900 games. If a linear relationship between price and demand exists, which of the following functions models the price-demand relationship?

(Let x represent the price per video game and f(x) represent the demand.)
A.
f(x) = -10x + 1,240
B.
f(x) = 10x - 440
C.
f(x) = -10x + 440
D.
f(x) = 10x

Question

A company manufactures and sells video games. A survey of video game stores indicated that at a price of $84 each, the demand would be 400 games, and at a price of $34 each, the demand would be 900 games. If a linear relationship between price and demand exists, which of the following functions models the price-demand relationship?

(Let x represent the price per video game and f(x) represent the demand.)
 A. 
f(x) = -10x + 1,240
 B. 
f(x) = 10x - 440
 C. 
f(x) = -10x + 440
 D. 
f(x) = 10x

tigerlover · Answer

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