满分5 >
初中数学试题 >
如图所示,数轴上A、B两点分别对应实数a,b,则a2-b= 0.(填“>”、“=...
如图所示,数轴上A、B两点分别对应实数a,b,则a
2-b=
0.(填“>”、“=”或“<”)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970012_ST/images0.png)
考点分析:
相关试题推荐
世界上著名的莱布尼茨三角形如图所示,则排在第10行从左边数第3个位置上的数是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970009_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970009_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970009_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970009_ST/2.png)
D.
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970008_ST/images0.png)
如图,函数y
1=kx+b和函数y
2=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970008_ST/0.png)
图象相交于点M(2,m),N(-1,n),若
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970008_ST/1.png)
,则x的取值范围是( )
A.x<-1或0<x<2
B.x<-1或x>2
C.-1<x<0或0<x<2
D.-1<x<0或x>2
查看答案
如图,把矩形OABC放在直角坐标系中,OC在x轴上,OA在y轴上,且OC=2,OA=4,把矩形OABC绕着原点顺时针旋转90°得到矩形OA′B′C′,则点B′的坐标为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101185859314497099/SYS201311011858593144970007_ST/images0.png)
A.(2,3)
B.(-2,4)
C.(4,2)
D.(2,-4)
查看答案