SAT I 每日一问:2013年6月28日
作者:沪江英语
来源:CollegeBoard
2013-06-28 10:14
The Correct answer is A.
Explanation
Since the graph of in the contains the point , it follows that substituting the value into yields . Hence , which simplifies to , or . Therefore, .
Alternatively, since the graph of in the contains the points and , and the coefficient of is , the equation is equivalent to , which multiplies out to . Therefore, .