把y＝x2向上平移二單位，可得一新函數為?
1-1複習
Quiz
•
Mathematics
•
9th Grade
•
Medium
胡立信lixinhu 胡立信lixinhu
Used 1+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
y＝(x＋2)2
y＝x2＋2
y＝2 x2
y＝x2－2
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列哪一個二次函數的圖形完全在x軸上方？
y＝3(x－2)2－8
y＝3(x－2)2＋8
y＝－3(x－2)2－8
y＝－3(x－2)2＋8
3.
MATH RESPONSE QUESTION
3 mins • 5 pts
如圖，阿水將二次函數描繪在此方格紙上，試問他所要畫的二次函數為何
Mathematical Equivalence
ON
4.
FILL IN THE BLANK QUESTION
5 mins • 9 pts
5.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
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.
GRAPHING QUESTION
5 mins • 5 pts
7.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
已知二次函數y＝x2＋mx＋n，且當x＝－4時，y有最小值－5，則m＋n＝？
－9
－1
1
19
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