评论
打印
答案：D
解析：
Choice (D) is correct. Since the graph of the quadratic equation y = (-2x^2) + (bx) + 5 assumes its maximum at x = 2, it can be written in the form y = (-2 ((x-2)^2) + k, where k is some constant. This representation is equivalent to y = (-2x^2) + (8x)-8 + k, from which it follows that b = 8 (and-8 + k = 5).
