满分5 >
初中数学试题 >
(2009•宁波)如图,点A,B,C在一次函数y=-2x+m的图象上,它们的横坐...
(2009•宁波)如图,点A,B,C在一次函数y=-2x+m的图象上,它们的横坐标依次为-1,1,2,分别过这些点作x轴与y轴的垂线,则图中阴影部分的面积之和是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059009_ST/images0.png)
A.1
B.3
C.3(m-1)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059009_ST/0.png)
考点分析:
相关试题推荐
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059008_ST/images0.png)
(2011•深圳)如图,每个小正方形边长均为1,则下列图中的三角形(阴影部分)与左图中△ABC相似的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059008_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059008_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059008_ST/images3.png)
D.
查看答案
(2009•金华)在北京奥运会上,我国健儿奋力拼搏,共获得了100枚奖牌,其中游泳6枚,射击8枚,球类21枚,举重9枚,体操13枚等.数据:6,8,21,9,13的中位数是( )
A.8
B.21
C.9
D.13
查看答案
(2009•金华)抛物线y=(x-2)
2+3的对称轴是( )
A.直线x=-2
B.直线x=2
C.直线x=-3
D.直线x=3
查看答案
(2006•宿迁)如图,在Rt△ABC中,∠C=90°,AC=3,AB=5.则cosB等于( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059005_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059005_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059005_ST/2.png)
D.
查看答案
(2009•鄂尔多斯)已知
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735194105981/SYS201310212307351941059004_ST/0.png)
是方程2x-ay=3的一个解,那么a的值是( )
A.1
B.3
C.-3
D.-1
查看答案