問題詳情
25. 設二次函數f (x) = ax2 + bx + c的圖形如下，則下列敘述何者有誤？
(A) a < 0
(B) b > 0
(C) c < 0
(D) b2 - 4ac > 0。
(A) a < 0
(B) b > 0
(C) c < 0
(D) b2 - 4ac > 0。
參考答案
答案：B[無官方正解]
難度：適中0.5
統計：A(0),B(1),C(0),D(0),E(0)
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