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已知反比例函数y=经过点(1,2),则一次函数y=kx-k的图象一定不经过( )...
已知反比例函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432005_ST/0.png)
经过点(1,2),则一次函数y=kx-k的图象一定不经过( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
考点分析:
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A.①②
B.②③
C.①④
D.③④
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已知反比例函数y=
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(a≠0)的图象,在每一象限内,y的值随x值的增大而减少,则一次函数y=-ax+a的图象不经过( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
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已知反比例函数y=
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的图象在每一个象限内,y随x的增大而增大,那么一次函数y=kx+2的大致图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432002_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432002_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432002_ST/images3.png)
D.
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y=k
1x-k
1(k
1>0)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432001_ST/0.png)
在同一坐标系中的图象大致是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432001_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432001_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432001_ST/images3.png)
D.
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设P是函数
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432000_ST/0.png)
在第一象限的图象上任意一点,点P关于原点的对称点为P′,过P作PA平行于y轴,过P′作P′A平行于x轴,PA与P′A交于A点,则△PAP′的面积( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101243675343239/SYS201311031012436753432000_ST/images1.png)
A.等于2
B.等于4
C.等于8
D.随P点的变化而变化
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