
二次函數
Authored by IP Chan
Mathematics
9th Grade
Used 1+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
二次函數y=-3 x2的開口方向為?
向上
向下
向左
向右
2.
MULTIPLE CHOICE QUESTION
30 sec • 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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個二次函數圖形的頂點坐標為(1,3)?
y=(x+1)2-3
y=(x-1)2-3
y=(x+1)2+3
y=(x-1)2+3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把y=x2-2向上平移5單位,可得一新的二次函數為?
y=(x+5)2
y=x2+3
y=5 x2
y=x2-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
試求二次函數y=2x2+1圖形的頂點坐標為何?
(2 , 1)
(2 , 0)
(0 , 2)
(0 , 1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將y=4x2 的圖形平移向上平移10個單位,會得到哪個二次函數的圖形?
y=4x2-10
y=4x2+5
y=4x2+10
y=4x2-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將y=4x2 的圖形向左平移3 個單位,頂點會變成?
( -3, 0 )
( 0,3 )
( 3,0 )
( 0,-3 )
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