满分5 >
初中数学试题 >
在同一平面直角坐标系中,一次函数y=ax+b和二次函数y=ax2+bx的图象可能...
在同一平面直角坐标系中,一次函数y=ax+b和二次函数y=ax
2+bx的图象可能为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022007_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022007_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022007_ST/images2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022007_ST/images3.png)
考点分析:
相关试题推荐
如图,若A、B、C、P、Q、甲、乙、丙、丁都是方格纸中的格点,为使ABC∽△PQR,则点R应是甲、乙、丙、丁四点中的( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022006_ST/images0.png)
A.甲
B.乙
C.丙
D.丁
查看答案
已知等边三角形的内切圆半径,外接圆半径和高的比是( )
A.1:2:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022005_ST/0.png)
B.2:3:4
C.1:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022005_ST/1.png)
:2
D.1:2:3
查看答案
已知⊙O的半径为10cm,弦AB∥CD,AB=12cm,CD=16cm,则AB和CD的距离为( )
A.2cm
B.14cm
C.2cm或14cm
D.10cm或20cm
查看答案
如图,AB是斜靠在墙壁上的长梯,梯脚B距墙1.6米,梯上点D距墙1.4米,BD长0.55米,则梯子长为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022003_ST/images0.png)
A.3.85米
B.4.00米
C.4.40米
D.4.50米
查看答案
如图,若BC∥DE,则下面比例式不能成立的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/0.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/2.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/4.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/5.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001051567102287/SYS201311030010515671022002_ST/6.png)
=
查看答案