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如图,直线y=-x+4与x轴,y轴分别交于A,B两点,把△AOB绕点A顺时针旋转...
如图,直线y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000321165046052/SYS201311030003211650460005_ST/0.png)
x+4与x轴,y轴分别交于A,B两点,把△AOB绕点A顺时针旋转90°后得到△AO′B′,则点B′的坐标是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000321165046052/SYS201311030003211650460005_ST/images1.png)
A.(7,3)
B.(4,5)
C.(7,4)
D.(3,4)
考点分析:
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