SAT I 每日一問(wèn)：2013年6月19日
作者：滬江英語(yǔ)
來(lái)源：CollegeBoard
2013-06-19 09:56
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
In the xy-plane, the graph of the equation above assumes its maximum value at x=2. What is the value of b??
(A)-8
(B)-4
(C)4
(D)8
(E)10