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函数和函数y=k(x2-1)在同一坐标系里的大致图象( ) A. B. C. D...
函数
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091011_ST/0.png)
和函数y=k(x
2-1)在同一坐标系里的大致图象( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091011_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091011_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091011_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091011_ST/images4.png)
考点分析:
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B.EF=
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A.
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![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161015969009177/SYS201310221610159690091006_ST/0.png)
,下列结论正确的是( )
A.函数图象必经过点(1,2)
B.函数图象经过第二、四象限
C.y随x的增大而增大
D.不论x取何值,总有y>0
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