配套习题- 反比例函数的概念 -【青果学院】

1/5单选题

难度：

1.下列函数中y是x的反比例函数的是（　　）

A
B	y=
C
D	y=

正确答案：Qw==

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

2/5单选题

难度：

2.下列关系中，两个量之间为反比例函数关系的是（　　）

A	正方形的面积S与边长a的关系
B	正方形的周长l与边长a的关系
C	矩形的长为a，宽为20，其面积S与a的关系
D	矩形的面积为40，长a与宽b之间的关系

正确答案：RA==

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

3/5单选题

难度：

3.若y=2x^m-5为反比例函数，则m=（　　）

A	-4
B	-5
C	4
D	5

正确答案：Qw==

6Kej77ya4oi1eT0yeDxzdXA+bS01PC9zdXA+5Li65Y+N5q+U5L6L5Ye95pWw77yMPGJyPuKItG0tNT0tMe+8jDxicj7op6PlvpdtPTTvvI48YnI+5pWF6YCJQ++8jg==

4/5单选题

难度：

4.下列命题错误的是（　　）

A	如果y是x的反比例函数，那么x也是y的反比例函数．
B	如果y是z的反比例函数，z是x的正比例函数，且x≠0，那么y是x的反比例函数
C	如果y是z的正比例函数，z是x的反比例函数，且x≠0，那么y是x的反比例函数
D	如果y是z的反比例函数，z是x的反比例函数，那么y是x的反比例函数

正确答案：RA==

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

5/5单选题

难度：

5.若y与x成反比例，x与z成反比例，则y是z的（　　）

A	正比例函数
B	反比例函数
C	一次函数
D	不能确定

正确答案：QQ==

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