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函数y=的图象经过(1,-1),则函数y=kx-2的图象是( ) A. B. C...
函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654002_ST/0.png)
的图象经过(1,-1),则函数y=kx-2的图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654002_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654002_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654002_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654002_ST/images4.png)
考点分析:
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函数
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(k≠0)的图象如图所示,那么函数y=kx-k的图象大致是( )
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A.
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B.
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C.
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D.
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已知反比例函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101523605765488/SYS201311031015236057654000_ST/0.png)
,当x>0时,y随x的增大而增大,则关于x的方程ax
2-2x+b=0的根的情况是( )
A.有两个正根
B.有两个负根
C.有一个正根一个负根
D.没有实数根
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如图,在反比例函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101516173502447/SYS201311031015161735024004_ST/0.png)
(x>0)的图象上,有点P
1,P
2,P
3,P
4,它们的横坐标依次为1,2,3,4.分别过这些点作x轴与y轴的垂线,图中所构成的阴影部分的面积从左到右依次为S
1,S
2,S
3,则S
1+S
2+S
3=
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如图,已知双曲线
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)经过矩形OABC边AB的中点F,交BC于点E,且四边形OEBF的面积为2,则k=
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如图,直线OA与反比例函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101516173502447/SYS201311031015161735024002_ST/0.png)
(k≠0)的图象在第一象限交于A点,AB⊥x轴于点B,△OAB的面积为2,则k=
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