
3-2正反比
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A:是
B:否
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以 x 公分為邊長的正三角形,
其周長以 y 公分表示,
請問,x 和 y的關係式是哪個?
y = 3x
3y = x
y = x/3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
百貨公司年中慶全面打八折,
關於原價和實際售價,
下列何者錯誤?
皮包原價1000元,
實際賣800元
原價(x)和實際售價(y)
的關係式是
y = 0.8x
原價(x)和實際售價(y)
的關係式是
y = 8x
原價(x)和實際售價(y)
成正比
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
時薪 190 元的工作,
小妍每天上班 x 小時,薪水為 y 元。
請問,上班時數x 和 薪水y的關係?
成正比
成反比
以上皆非
190y = x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
時速 80 km/h,行駛 x 小時,共走了 y km,
請問,行駛時間x 和 距離y的關係?
成正比
成反比
以上皆非
y = x / 80
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
三角形的底為 x cm,高為 y cm,面積為 48cm2 ,
請問,x 和 y 的關係?
成正比
成反比
以上皆非
y = 48x
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
y = 7x + 3
請問 x 和 y 的關係?
成正比
成反比
以上皆非
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