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如图,直线y=x+与y轴交于点P,将它绕着点P旋转90°所得的直线的解析式为( ...
如图,直线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/0.png)
x+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/1.png)
与y轴交于点P,将它绕着点P旋转90°所得的直线的解析式为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/images2.png)
A.y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/2.png)
x+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/3.png)
B.y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/4.png)
x+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/5.png)
C.y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/6.png)
x+2
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/7.png)
D.y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/8.png)
x+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000101272930258/SYS201311030001012729302007_ST/9.png)
考点分析:
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