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

　　F(t)=0.95^(t/2)

　　The function F(t) gives the percentage, as a decimal, of information Dianna remembered t days after memorizing lines for a play. Assuming she did not work on her lines again, what is the best interpretation of the meaning of the function F in this context?

　　A.On any given day, Dianna will forget 95% of the lines 1 day after she memorizes them.

　　B.On any given day, Dianna will forget 95% of the lines 2 days after she memorizes them.

　　C.On any given day, Dianna will remember 95% of the lines 1 day after she memorizes them.

　　D.On any given day, Dianna will remember 95% of the lines 2 days after she memorizes them.

　　【答案解析】

　　答案：D

　　解析：

　　Option D is correct. After 2 days, the exponent of the function will be 2/2=1. Dianna will remember (0.95^1)*100 or 95% of the lines.

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