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二次函數

Authored by IP Chan

Mathematics

9th Grade

Used 1+ times

二次函數
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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

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

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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