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11. 關於二次函數y=-2(x-1)2+2圖形的敘述,下列何者錯誤?(A) 其圖形的頂點坐標為(-1 , 2) (B) 其圖形為一拋物線(C) 其圖形的對稱軸為x=1(D) 其圖形的開口向下
問題詳情
11. 關於二次函數y=-2(x-1)2+2圖形的敘述,下列何者錯誤?
(A) 其圖形的頂點坐標為(-1 , 2)
(B) 其圖形為一拋物線
(C) 其圖形的對稱軸為x=1
(D) 其圖形的開口向下
參考答案
答案:A
難度:
計算中
-1
書單:
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上一篇 :
10. 右圖為二次函數y=ax2+bx+c的圖形,則下列敘述何者正確? (A) a>0,c>0,b2-4ac>0(B) a<0,c>0,b2-4ac<0 (C) a>0,c<0,b2-4ac>0(D)
下一篇 :
12. 若二次函數f ( x )=-999 ( x-199 )2+799,則下列選項哪一個函數值最大?(A) f ( 100 )(B) f ( 200 )(C) f (-100 )(D) f (-20
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