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二次函數

Authored by 洪榮忠 新湖國中

Mathematics

9th Grade

Used 47+ times

二次函數
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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?

Media Image
Media Image
Media Image
Media Image

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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