二次函數問題

二次函數問題

9th Grade

15 Qs

quiz-placeholder

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二次函數問題

二次函數問題

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Jimmy Lin

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列各選項中的敘述,何者錯誤?

y=2x+7 是線型函數

y=2x2-5 是線型函數

y=x 是一次函數

y=-3 是常數函數

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列二次函數的圖形,何者開口最大?

y=-2x2

y=0.5x2-2

y=-x2+2

y=x2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

二次函數y=-3 x2 的頂點座標為?

(1,0)

(0,0)

(0,1)

(3,0)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

二次函數y=-3 x2 的開口方向為?

向下

向右

向左

向上

5.

MULTIPLE CHOICE QUESTION

30 sec • 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

30 sec • 1 pt

把 y=x2 向上平移二單位,可得一新函數為?

y=x2-2

y=(x+2)2

y=x2+2

y=2 x2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個二次函數圖形的對稱軸為 x=-2?

y=x2-2

y=3(x-2)2

y=-(x-2)2+1

y=(x+2)2+4

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