SAT I 每日一问:2013年9月1日
作者:沪江英语
来源:CollegeBoard
2013-09-02 10:33
The correct answer is C
Explanation
The graph of the function is the same as the graph of the function translated up units. The function intersects the three times, but if the graph is shifted up units, then the graph will intersect the only twice. Therefore, is equal to for exactly two values of between and .