1/5单选题
难度：
1.
如果函数
是反比例函数，那么
( )
| A | 1 |
| B | 2 |
| C | 0 |
| D | -1 |
- 提示1：
- PHA+5qC55o2u5Y+N5q+U5L6L5Ye95pWw55qE5LiA6Iis5b2i5byP77yM5Y2z5Y+v5b6X5Yiway0yPS0x77yM5LiUa+KJoDDvvIzljbPlj6/msYLlvpdr55qE6IyD5Zu0Ljxicj48L3A+
正确答案：QQ==
PGRpdj7op6PvvJrmoLnmja7popjmhI/lvpfvvJogay0yPS0x5LiUIGviiaAw77yMPC9kaXY+PGRpdj7op6PlvpfvvJprPTHvvIw8L2Rpdj48ZGl2PuaVheetlOahiOaYr++8mjEuPC9kaXY+
2/5单选题
难度：
2.
下列函数中，属于反比例函数的有（ ）
| A | y=x−3 |
| B | y=13x |
| C | y=8−2x |
| D | y=x2−1 |
- 提示1：
- 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
正确答案：Qg==
PGRpdj7op6PvvJrpgInpoblB5piv5q2j5q+U5L6L5Ye95pWw77yM6ZSZ6K+v77ybPGJyPumAiemhuULlsZ7kuo7lj43mr5Tkvovlh73mlbDvvIzmraPnoa7vvJs8YnI+6YCJ6aG5Q+aYr+S4gOasoeWHveaVsO+8jOmUmeivr++8mzxicj7pgInpoblE5piv5LqM5qyh5Ye95pWw77yM6ZSZ6K+vLjxicj7mlYXpgIlCLjwvZGl2Pg==
3/5单选题
难度：
3.
下列函数是反比例函数的是（ ）
| A | y=k2−1x （k 为常数） |
| B | y=kx （k 为常数） |
| C | y=k2+1x |
| D | y=kx+1 （k ≠0 的常数） |
- 提示1：
- 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
正确答案：Qw==
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
4/5单选题
难度：
4.
下列函数关系是反比例关系的是（ ）
| A | 三角形的底边为一常数，则三角形的面积y与三角形这条底边上的高x的函数关系 |
| B | 矩形的面积为一常数，则矩形的长与宽的函数关系 |
| C | 力F为常数，则力所做的功W与物体在力F的方向上移动的距离间的函数关系 |
| D | 每本作业本的价格一定，小亮所花的钱与他所买的作业本数之间的函数关系 |
- 提示1：
- PHA+5qC55o2u5Y+N5q+U5L6L5Ye95pWw55qE5a6a5LmJ5a+55ZCE6YCJ6aG55YiG5p6Q5Yik5pat5ZCO5Yip55So5o6S6Zmk5rOV5rGC6KejLjwvcD4=
正确答案：Qg==
PGRpdj48cD48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDQvNTUvckJBQ0ZGTU8tOW1qdnQxeEFBQW9jbmdGYUE4NjUzLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wNC81NS9yQkFDRkZNTy05bWp2dDF4QUFBb2NuZ0ZhQTg2NTMucG5nIiBhbHQ9IiIgc3R5bGU9IndpZHRoOiA1ODlweDsgaGVpZ2h0OiAxOTFweDsiPjxicj48L3A+PC9kaXY+
5/5单选题
难度：
5.
下面说法中正确的个数为（ ）
（1）如果y是x的反比例函数，那么当x增大时，y就减小
（2）当x与y乘积一定时，y就是x的反比例函数，x也是y的反比例函数
（3）如果一个函数不是正比例函数，就是反比例函数
（4）y与x2成反比例时y与x并不成反比例
（5）y与2x成反比例时，y与x也成反比例
| A | 1 |
| B | 2 |
| C | 3 |
| D | 4 |
- 提示1：
- PHA+5qC55o2u5Y+N5q+U5L6L5Ye95pWw55qE5a6a5LmJ5Y+K5oCn6LSo77yM5Y2z5Y+v5Yik5pat5Ye65ZCE6YCJ6aG555qE5a+56ZSZPC9wPg==
正确答案：Qg==
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