如图,点A的坐标为(-2,0),点B的坐标为(8,0),以AB为直径作⊙O′,交y轴的负半轴于点C,则点C的坐标为_______ ,若二次函数
的图像经过点A,C,B.已知点P是该抛物线上的动点,当∠APB是锐角时,点P的横坐标x的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://img.xkw.com/dksih/QBM/2013/4/19/1573641857695744/1573641926156288/STEM/fc9b8c28f7b04fe7a225291607c2a3e2.png?resizew=178)
12-13九年级上·浙江杭州·期中 查看更多[3]
更新时间:2016-12-05 17:25:36
|
相似题推荐
填空题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,
.按如下步骤作图:
①分别以点B,C为圆心,以大于
长为半径作弧,两弧交于P,Q 两点;
②作直线
,交
于点O;
③以点O为圆心,线段
长为半径作圆,交
于点D;
④连接
.若
,则
的大小为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7c16e88340f1b676d7aa7cc8bfff2e9.png)
①分别以点B,C为圆心,以大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d452f74791f58e8400cb8d2d6038dc4.png)
②作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
③以点O为圆心,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
④连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c49b0ba9d16d37be55fdafec031ae13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bc8e50eeccced1d7f3bc52e09a7d03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/63073491-6503-4eac-a1e6-b12465e2eb4f.png?resizew=170)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,已知在
中,
是
的直径,
.若D为
上一点,且
为等腰三角形,则弦
的长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56a8f16fabf96a6278702626a8adf5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb961bd7db3adb76af2d4cedb611bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/3e15149a-02cc-4176-a6cb-aa4543dfc110.png?resizew=167)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】如图,已知
的半径为2,圆心P在抛物线
上运动;当
与x轴相切时;圆心P的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17faea138e0ea57e848f7e3d33683c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/f4fc1392-3365-41cb-9780-570e7014df4a.png?resizew=155)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】若不等式
对于
恒成立,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134616b14341128f61a67c9167742a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次