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已知函数y=x-5,令x=,1,,2,,3,,4,,5,可得函数图象上的十个点....
已知函数y=x-5,令x=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/0.png)
,1,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/1.png)
,2,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/2.png)
,3,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/3.png)
,4,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/4.png)
,5,可得函数图象上的十个点.在这十个点中随机取两个点P(x
1,y
1),Q(x
2,y
2),则P,Q两点在同一反比例函数图象上的概率是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/5.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/6.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/7.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000125468720904/SYS201311030001254687209019_ST/8.png)
考点分析:
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