满分5 >
初中数学试题 >
(2007•宜昌)反比例函数与二次函数在同一平面直角坐标系中的大致图象如图所示,...
(2007•宜昌)反比例函数与二次函数在同一平面直角坐标系中的大致图象如图所示,则它们的解析式可能分别是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892009_ST/images0.png)
A.y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892009_ST/0.png)
,y=kx
2-
B.y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892009_ST/1.png)
,y=kx
2+
C.y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892009_ST/2.png)
,y=kx
2+
D.y=-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892009_ST/3.png)
,y=-kx
2-
考点分析:
相关试题推荐
(2007•宜昌)一种细胞的直径约为1.56×10
-6米,那么它的一百万倍相当于( )
A.玻璃跳棋棋子的直径
B.数学课本的宽度
C.初中学生小丽的身高
D.五层楼房的高度
查看答案
(2007•宜昌)如图,四边形ABCD是矩形,F是AD上一点,E是CB延长线上一点,且四边形AECF是等腰梯形.下列结论中不一定正确的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892007_ST/images0.png)
A.AE=FC
B.AD=BC
C.∠AEB=∠CFD
D.BE=AF
查看答案
(2007•宜昌)化简:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/0.png)
×
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/1.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/2.png)
的结果是( )
A.5
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/3.png)
B.6
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/4.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892006_ST/5.png)
D.5
查看答案
(2008•双柏县)如图,小明从点O出发,先向西走40米,再向南走30米到达点M,如果点M的位置用(-40,-30)表示,那么(10,20)表示的位置是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110415544389284/SYS201310191104155443892005_ST/images0.png)
A.点A
B.点B
C.点C
D.点D
查看答案
(2007•宜昌)据统计,2002年至2006年全国每年工业增加值比上年增长的幅度分别是:10.0%,12.8%,11.5%,11.6%,12.5%.则这组数据的中位数是( )
A.11.5%
B.11.6%
C.11.68%
D.11.55%
查看答案