名校
1 . 过抛物线
(
)的焦点作平行于
轴的直线与抛物线相交于
两点,
为坐标原点,
面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
10-11高二上·湖南长沙·阶段练习
名校
2 . 如图,抛物线的顶点在坐标原点,圆
的圆心是抛物线的焦点,直线
过抛物线的焦点且斜率为2,直线
交抛物线和圆依次于
四点.
(1)求抛物线的方程;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37556d87d1c6df6463bd0601138aa63c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2740d2f1f18082f6299bd23e0be289c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/d6410f21-493a-4001-bc6c-c46b5ff2d0c0.png?resizew=127)
(1)求抛物线的方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3be021cd3e090c1f1686e1fb14a7d6.png)
您最近一年使用:0次
2016-11-30更新
|
1151次组卷
|
6卷引用:2011届湖南省浏阳一中高二上学期第三次阶段性测试理科数学卷
(已下线)2011届湖南省浏阳一中高二上学期第三次阶段性测试理科数学卷黑龙江省海林市朝鲜族中学人教版高中数学选修1-1同步练习:滚动习题(三)[范围2.2~2.3](已下线)2018年12月6日 《每日一题》理科数学人教选修2-1-抛物线的焦点弦问题(已下线)2018年12月6日 《每日一题》文数人教选修1-1-抛物线的焦点弦问题北京市第九中学2023-2024学年中高二下学期开学考试数学试题(已下线)3.3.2 抛物线的简单几何性质【第一练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
解题方法
3 .
为抛物线
的焦点,
是抛物线
上的两个动点.
(Ⅰ)若直线
经过焦点
,且斜率为2,求
;
(Ⅱ)若直线
,求点
到直线
的距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d8c95731d6b6c8bb68643dc456478a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅰ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(Ⅱ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf38454cba04294754343a90d7d2b95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-01-19更新
|
477次组卷
|
6卷引用:北京市西城区2017— 2018学年度第一学期期末高二数学文科试题
名校
解题方法
4 . 定长为
的线段
的两个端点在以点
为焦点的抛物线
上移动,记线段
的中点为
,求点
到
轴的最短距离,并求此时点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08862833508abd5c124476423c548bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
5 . 已知抛物线
:
,直线
与抛物线
交于
,
两点.点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
为抛物线上一动点,直线
,
分别与
轴交于
,
.
(1)若
的面积为
,求点
的坐标;
(2)当直线
时,求线段
的长;
(3)若
与
面积相等,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311b3d2c1e4e7c203ccb1a5ffd8d55cb.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
解题方法
6 . 已知定点
及抛物线
,抛物线
的焦点为
且准线
恰好经过圆
的圆心
.
(1)求抛物线
的标准方程.
(2)过点
作
的平行线交抛物线
于
、
两点,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f360246d78db95b642b56a39bced7d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ddac161f458e61dfaf8d350a4ce2e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f954a8da05cc9144d4bf86f88e236a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/aaff41080fdea43eea7efedf9ebc1498.png)
您最近一年使用:0次
7 . 已知斜率为1的直线l经过抛物线
的焦点F,且与抛物线交于A,B两点.
(Ⅰ)求线段AB的长;
(Ⅱ)已知点
,证明:直线AM与直线BM不垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(Ⅰ)求线段AB的长;
(Ⅱ)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363598fd39f2269952dc6ddd1201346c.png)
您最近一年使用:0次
11-12高二上·北京·期中
解题方法
8 . 在平面直角坐标系
中,抛物线C的顶点在原点,经过点
,其焦点F在x轴上.
![](https://img.xkw.com/dksih/QBM/2014/4/20/1571632189833216/1571632195330048/STEM/4f18dd5b4ede436a95d56016581e67b7.png?resizew=83)
(1)求抛物线C的标准方程;
(2)求过点F,且与直线OA垂直的直线的方程;
(3)设过点
的直线交抛物线C于D、E两点,
,记D和E两点间的距离为
,求
关于m的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/174541741f9d18ca1394943abd2ed0aa.png)
![](https://img.xkw.com/dksih/QBM/2014/4/20/1571632189833216/1571632195330048/STEM/4f18dd5b4ede436a95d56016581e67b7.png?resizew=83)
(1)求抛物线C的标准方程;
(2)求过点F,且与直线OA垂直的直线的方程;
(3)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e72a5cf792c50131c13cd443004b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f16c0bdcd4e1b36d4b6a149545eef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f81f2a0196b06fc56a7e8a6463d179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f81f2a0196b06fc56a7e8a6463d179.png)
您最近一年使用:0次
解题方法
9 . (1)已知直线
经过抛物线
的焦点F,且与抛物线相交于A、B两点.若直线
的倾斜角为
,求
的值;
(2)抛物线
截直线
所得弦长等于?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261104a7c308433a0c0508ff20ea29a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b40ecaf1c1ce4dc9e33c8dc8731f2123.png)
(2)抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3577bf250e9110428ff34f518fbd9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd749e80e671faa681d3c40d032df26.png)
您最近一年使用:0次
2020-12-28更新
|
43次组卷
|
2卷引用:北京市昌平区新学道临川学校2020-2021学年高二年级12月月考数学(文)试题