九下二次函數

九下二次函數

9th Grade

20 Qs

quiz-placeholder

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九下二次函數

九下二次函數

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

范雪凌 范雪凌

Used 3+ times

FREE Resource

20 questions

Show all answers

1.

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

2.

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)

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?

Media Image
Media Image
Media Image
Media Image

4.

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

5.

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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

坐標平面上有 y=2x2 及 y=2(x-3)2 兩個二次函數的圖形,則下列敘述何者正確? 

開口大小一樣

對稱軸一樣

頂點一樣

開口方向不一樣

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將兩個二次函數y=2 x2+1與y=2 x2-1畫在同一座標平面上,下列有關這兩個函數圖形的敘述,哪一個是錯誤的?

有相同的開口方向

圖形都是拋物線

有相同的頂點座標

有相同的對稱軸。

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