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2011年12月24日
考试类型: Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
The function 
, defined for
, is graphed above. For how many different values of 
is 
?
A. None
B. One
C. Two
D. Three
E. Four
正确答案:E 解析:
|
when the point 
is on the graph of 
. Drawing the line 
, as in the graph below, shows that the 
is equal to 
for four values of 
between 
and 
.