
二次函數
Quiz
•
Mathematics
•
9th Grade
•
Medium
chang shengchi
Used 18+ times
FREE Resource
13 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
45 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
1 min • 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
4.
MULTIPLE CHOICE QUESTION
2 mins • 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。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有4個二次函數:
y=2x2
y=-2x2
y=- 0.7x2
y=3.2x2
開口向下的有幾個?
4
3
2
1
6.
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)
7.
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
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