問題詳情
28. 圖(十二)為座標平面上二次函數y=ax2+bx+c的圖形，且此圖形通過(-1 , 1 )、( 2 ,-1 )兩點。下列關於此二次函數的敘述，何者正確？
(A) y的最大值小於0
(B)當x = 0 時，y 的值大於1
(C)當x = 1 時，y 的值大於1
(D)當x = 3 時，y 的值小於0
參考答案
無參考答案
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