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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

The government of a particular country is planning to subsidize electric vehicles by lowering their prices in order to encourage consumers to purchase them. Electric vehicles are currently being purchased steadily at a rate of about 287 per month, with an average purchase price of $24627. For each drop of $1000 in the average electric vehicle's purchase price, it is expected that the monthly purchase rate will increase by 48. Which of the following best models the monthly electric vehicle revenue, R(p), in this country as a function of p price reductions of $1000 each?
(revenue=price of product*number of product)

A.R(p)=24627(287-952p)
B.R(p)=1000(24627-p)(287+48p)
C.R(p)=(24627-p)(287+p)
D.R(p)=(24627-1000p)(287+48p)

答案和解析

答案：D

解析：

Choice D is correct.