
二次函數
Authored by 洪榮忠 新湖國中
Mathematics
9th Grade
Used 47+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各選項中的敘述,何者錯誤?
y=-3 是常數函數
y=2x+7 是線型函數
y=x 是一次函數
y=2x2-5 是線型函數
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列二次函數的圖形,何者開口最大?
y=-x2+2
y=-2x2
y=0.5x2-2
y=x2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
二次函數y=-3 x2的頂點座標為?
(3,0)
(1,0)
(0,1)
(0,0)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
二次函數y=-3 x2的開口方向為?
向上
向下
向左
向右
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者可能為二次函數y=-2x2-1的圖形?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把y=x2向上平移二單位,可得一新函數為?
y=(x+2)2
y=x2+2
y=2 x2
y=x2-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一個二次函數圖形的對稱軸為 x=-2?
y=(x+2)2+4
y=-(x-2)2+1
y=x2-2
y=3(x-2)2
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