
CH1 二次函數 觀念題複習
Authored by 陳 嘉卿
Mathematics
9th Grade
13 Questions
Used 15+ times

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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將這些二次函數圖形的開口由小到大排列
甲<乙<丙<丁
甲<丁<丙<乙
乙<丙<丁<甲
乙<丁<甲<丙
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各函數圖形中,哪一個有最高點?
y=(2-x)(2+x)
y=x2
y=1+2x2
y=-x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者可能為二次函數y=-2x2-1的圖形?
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列有關二次函數y=2x2+1圖形的敘述,
哪些正確?
圖形的開口向上
圖形的最低點坐標為(0 , 1)
圖形的最高點坐標為(0 , 1)
圖形的對稱軸方程式為y=1
圖形向下平移1個單位可得到一新圖形,且新圖形的函數為y=2x2
5.
MULTIPLE CHOICE QUESTION
45 sec • 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=(x-1)2+1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若用配方法將二次函數y=-2x2-4x+1寫成y=-2(x-h)2+k的形式,求h+k=?
2
4
-4
-2
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
關於二次函數y=x2-4x+3的敘述,哪些正確?
圖形有最低點
圖形的對稱軸為直線x-2=0
頂點坐標為(2 , 1)
圖形為拋物線
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