The consumer price data can be modeled by the function
, where
represents 1945 and
src="https://sciemce.com/media/3/ppg__cognero__Chapter_10_Applications_of_Derivatives__media__d92f0c51-12f7-4967-b384-efd5f2489b49.PNG" style="vertical-align:middle;" />is the consumer price index (CPI) in year. During what year does the model predict that the rate of change of the CPI reached its maximum?
?
A. 1955
B. 1981
C. 1996
D. 1977
E. 1947
Answer: E
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