如图所示,抛物线顶点坐标为点
,交
轴于点
,交
轴于点
.
的解析式;
(2)点P是抛物线(在第一象限内)上的一个动点,连接
、
,当P点运动到顶点C时,求
的铅垂高
及
;
(3)点P是抛物线(在第一象限内)上的一个动点,是否存在一点
,使
,若存在,求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d29d22c5fa591908ac9fe687d3815b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a4f60b270ad2d549d8b0286088e9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)点P是抛物线(在第一象限内)上的一个动点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41663d9e5e18891475aeaa98794f33d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2971b7cd2ccdd4bce993396a7ea8eaf.png)
(3)点P是抛物线(在第一象限内)上的一个动点,是否存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd23b9ff22900260e06e18b37a938b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
2024·山东滨州·一模 查看更多[3]
更新时间:2024-06-05 06:23:57
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相似题推荐
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【推荐1】有一张轴对称纸片,曲线部分为抛物线,如图1,以抛物线对称轴所在直线为y轴建立平面直角坐标系,其中点A,B在x轴上,点C在y轴上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/b7b68f27-db11-47e4-ad30-ce7a7abb5cdd.png?resizew=146)
(1)求该抛物线的函数关系式
(2)在纸片中裁剪出一个正方形
,如图2,其中点E,F在该抛物线上,点G,H在x轴上.求点F的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f347ed462b430eda65e6e78dd1885939.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/b7b68f27-db11-47e4-ad30-ce7a7abb5cdd.png?resizew=146)
(1)求该抛物线的函数关系式
(2)在纸片中裁剪出一个正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/f67fa6f4-9e19-4e9a-a966-4dce408b32bc.png?resizew=149)
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真题
【推荐2】以菱形
的对角线交点
为坐标原点,
所在的直线为
轴,已知
,
,
,
为折线
上一动点,内行
轴于点
,设点
的纵坐标为![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/8d5b1b813adf4bbd8e06e55ac2195673.png)
(1)求
边所在直线的解析式;
(2)设
,求
关于
的函数关系式;
(3)当
为直角三角形,求点
的坐标.
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/e7f9547075d7437f9e948b5956919cc0.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/65c59b552daa4744bb9c3cb52507a5c6.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/491c42a8e3f749f9a72783b2e5f7661f.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/1cb4f093670845b1a4715f8f9b498e74.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/9d92fd18ac174b1cb2f328a9ffc77212.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/b42c9d1457c3437cbd4d3fe1eb085caf.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/230fc23ca89d494e9be961d1318d7153.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/a3b3ab34a99d403092a31e81ae5c7b76.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/b9e28f62efe44135877cae643a564cdd.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/f539b0ab30e642329f4827ae2be78a15.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/f12c721d68fc467cb1ff526594287ee5.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/a3b3ab34a99d403092a31e81ae5c7b76.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/8d5b1b813adf4bbd8e06e55ac2195673.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/736866b8321540329b6721134cd00f5d.png)
(2)设
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/83889acafb2d4876845f760dfbbc697f.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/8191027b607d4be58fe336cb7bdc6aaf.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/d3dd79787faa47f2855a249eb96393a3.png)
(3)当
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/6fbcaafeac3b4c5184741dc0d9db1f80.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/a3b3ab34a99d403092a31e81ae5c7b76.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762673737728/1773762674204672/STEM/735409293d2f4dd586293bfa77dd9157.png)
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【推荐1】已知一次函数
与双曲线
在第一象限交于
、
两点,
点横坐标为
,
点横坐标为
.
![](https://img.xkw.com/dksih/QBM/2021/11/4/2843934630985728/2844947403513856/STEM/51973f9a-2b86-4785-a0d2-78ab14c29922.png)
(1)求一次函数的解析式;
(2)根据图象直接写出不等式
的解集;
(3)点
是
轴正半轴上一个动点,过
点作
轴的垂线分别交直线和双曲线于
、
,设
点的横坐标是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
,
的面积为
,求
和
的函数关系式,并指出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e11d5bff57e56ce82c2339f2d71ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://img.xkw.com/dksih/QBM/2021/11/4/2843934630985728/2844947403513856/STEM/51973f9a-2b86-4785-a0d2-78ab14c29922.png)
(1)求一次函数的解析式;
(2)根据图象直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a7350611049144cd781e9a9f5e42b2.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd27dc03f369fada3e95adc999f234b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】如图,抛物线y=﹣x2+bx+c经过A(4,0),C(﹣1,0)两点,与y轴交于点B,P为第一象限抛物线上的动点,连接AB,BC,PA,PC,PC与AB相交于点Q.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/aa56593b-6675-4752-ab99-92ff2f43aa5e.png?resizew=223)
(1)求抛物线的解析式;
(2)设
APQ的面积为S1,
BCQ的面积为S2,当S1﹣S2=5时,求点P的坐标;
(3)是否存在点P,使
PAQ为直角三角形,若存在,直接写出点P的坐标;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/aa56593b-6675-4752-ab99-92ff2f43aa5e.png?resizew=223)
(1)求抛物线的解析式;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
(3)是否存在点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
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名校
【推荐1】已知抛物线
与
轴交于点
.
(1)求抛物线
的解析式(结果化成一般形式)及顶点坐标;
(2)设抛物线与
轴的正半轴的交点为点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①若点
是抛物线上一点,它的横坐标是5,在抛物线的对称轴上有一点
,使
最小,请求出此时
点的坐标.
②点
为
轴上一动点,点
在抛物线上.点
满足
,
.求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29694a066544dd7c665011dc9e9aba18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a23e87d16c32b5aa4357f481b5808a0.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29694a066544dd7c665011dc9e9aba18.png)
(2)设抛物线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4c97c1f2f9a13aee27e3d9ccb4d3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6666f5643e0342ccd7b1777743bb4e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4e619da064751e750afca7d1244d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐2】如图,抛物线
与x轴、y轴分别交于点
、点
,点C为抛物线的顶点坐标.
(2)设点B关于抛物线对称轴的对称点为点D,平移原抛物线,设新抛物线的顶点为点M,使点M始终在射线
上,过点D作
轴交x轴于点E,若新抛物线的对称轴为直线
,当新抛物线与线段
有交点时,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2af27f3daf3931a4734a69d24bad760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823099d18b79aad79a43d30704291aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396b08e4848f688a5fff1b804cf3f205.png)
(2)设点B关于抛物线对称轴的对称点为点D,平移原抛物线,设新抛物线的顶点为点M,使点M始终在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd69e51abb06a0e6e43a878c7120bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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【推荐3】已知二次函数y=ax2﹣2ax﹣2(a≠0).
(1)该二次函数图象的对称轴是直线 ;
(2)若该二次函数的图象开口向上,当﹣1≤x≤5时,函数图象的最高点为M,最低点为N,点M的纵坐标为
,求点M和点N的坐标;
(3)已知线段PQ的两个端点坐标分别为P(0,﹣4)、Q(3,﹣4),当此函数图像与线段PQ只有一个交点时,直接写出a的取值范围.
(4)对于该二次函数图象上的两点A(x1,y1)、B(x2,y2),当x2≥3时,y1≥y2恒成立,设t≤x1≤t+1,请结合图象,直接写出t的取值范围
(1)该二次函数图象的对称轴是直线 ;
(2)若该二次函数的图象开口向上,当﹣1≤x≤5时,函数图象的最高点为M,最低点为N,点M的纵坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41354372ccb7c514380a0b70d97aa08.png)
(3)已知线段PQ的两个端点坐标分别为P(0,﹣4)、Q(3,﹣4),当此函数图像与线段PQ只有一个交点时,直接写出a的取值范围.
(4)对于该二次函数图象上的两点A(x1,y1)、B(x2,y2),当x2≥3时,y1≥y2恒成立,设t≤x1≤t+1,请结合图象,直接写出t的取值范围
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