名校
解题方法
1 . 设直线
,(
).
(1)求证:直线
恒过定点
,并求出定点
坐标;
(2)若直线
在两坐标轴上的截距相等,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e853b6948b9d4ffb88c20b7348e87a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-12-25更新
|
204次组卷
|
5卷引用:江西科技学院附属中学2020-2021学年高一下学期期末数学(理)试题
名校
解题方法
2 . 已知圆
,直线
.
(1)求证:对
,直线
与圆
总有两个交点;
(2)设直线
与圆
交于点
,若
,直线
的倾斜角;
(3)设直线
与圆
交于点
,若定点
满足
,求此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c406915922045153a67d269f41ac4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3445947fa34dd409a1354786e6c4a579.png)
(1)求证:对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313cfe91ae6e19135fa13ad96df2ef75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839b9026408be532c90d251c008ed26a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-04-25更新
|
751次组卷
|
2卷引用:江苏省无锡市宜兴市2018-2019学年高一下学期第二学段考试数学试题
3 . 已知圆
的方程为
,直线
的方程为
,点
在直线
上,过点
作圆
的切线
,
,切点为
,
.
(1)求若
,试求点
的坐标;
(2)求证:直线
过定点;
(3)设线段
的中点为
,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1754846b9b36407340e6e69c381353c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f52cb58b6bc5d71030463ba7e28134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b15b82151bff7cc0238d2034a6129f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
名校
解题方法
4 . 在平面直角坐标系
中,圆
,以
为圆心的圆记为圆
,已知圆
上的点与圆
上的点之间距离的最大值为21.
(1)求圆
的标准方程;
(2)求过点
且与圆
相切的直线的方程;
(3)已知直线
与
轴不垂直,且与圆
,圆
都相交,记直线
被圆
,圆
截得的弦长分别为
,
.若
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf503ae2e1b201b872fef07dd9ff2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028ed4e0ff00937eadfe29df7fb0ca9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055333b8e87d2d187c7401e0f3461ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
(3)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7d00dfb1100de062d68c86e752bb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-04-13更新
|
402次组卷
|
2卷引用:江苏省南通市启东中学2019-2020学年高一(普通班)下学期期初考试数学试题
5 . 如图,平面直角坐标系内,O为坐标原点,点A在x轴正半轴上,点B在第一象限内,
.
![](https://img.xkw.com/dksih/QBM/2020/7/13/2505228296282112/2507133698007040/STEM/08f048be-349f-42b2-98f4-fbcf0833a92b.png?resizew=197)
(1)若
过点
,当
的面积取最小值时,求直线
的斜率;
(2)若
,求
的面积的最大值;
(3)设
,若
,求证:直线
过一定点,并求出此定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://img.xkw.com/dksih/QBM/2020/7/13/2505228296282112/2507133698007040/STEM/08f048be-349f-42b2-98f4-fbcf0833a92b.png?resizew=197)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734c0e7eec2dc13a82a6db835f455f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55678a24ab329175d5a13c9d14c173c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1dc2433bd145a8b6620a7d6c8eaa77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-07-16更新
|
1916次组卷
|
7卷引用:江苏省苏州市昆山市2018-2019学年高一下学期期中数学试题
江苏省苏州市昆山市2018-2019学年高一下学期期中数学试题上海市复旦大学附属中学2020-2021学年高二上学期10月月考数学试题(已下线)专题4.1 坐标平面上的直线【压轴题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)(已下线)第1章《直线与方程》 培优测试卷(一)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)专题10 《直线与方程》中的取值范围与最值问题(2)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)专题1.3 直线与方程 章末检测3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)(已下线)专题7.3 期末押题检测卷(考试范围:选择性必修第一册)3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)
名校
解题方法
6 . 已知圆
与两条坐标轴都相交,且与直线
相切.
(1)求圆
的方程;
(2)若动点
在直线
上,过
引圆
的两条切线
,
,切点分别为
,
,求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad37cc115251748266cdaeb9fb071208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8b515c0b57767af60c121f89277af2.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2020-09-04更新
|
532次组卷
|
4卷引用:广西北海市2019-2020学年高一下学期期末教学质量检测数学试题
名校
解题方法
7 . 已知直线
和圆
.
(1)求证:无论
为何值,直线
总与圆
有交点;
(2)
为何值时,直线
被圆
截得的弦最短?求出此时的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2471b7a173417ea9f111b7652f4ceaff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc902e01467367a7909dfeddab8b0618.png)
(1)求证:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在直角坐标系
中,圆
与
轴负半轴交于点
,过点
的直线
,
分别与圆
交于
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/9736738f-f93e-43a2-abaf-c91dbba7e1c9.png?resizew=176)
(1)过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
作圆
的两条切线,切点分别为
,求
;
(2)若
,求证:直线
过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/9736738f-f93e-43a2-abaf-c91dbba7e1c9.png?resizew=176)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3b00197d4bd8d7c7aee41a6f93f024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d70de1ffdd9aa376b09bbcfa12644a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aaa6f76638d1c72d222501e18f42807.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59747cee312ee5140643428cae79efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
名校
解题方法
9 . 已知直线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680cccb74fd7dcf867be5d1ca3358a6d.png)
(1)求证:不论m为何实数,直线
恒过一定点M;
(2)过定点M作一条直线
,使夹在两坐标轴之间的线段被M点平分,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680cccb74fd7dcf867be5d1ca3358a6d.png)
(1)求证:不论m为何实数,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)过定点M作一条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
2020-05-26更新
|
681次组卷
|
7卷引用:江苏省宿迁市沭阳县2019-2020学年高一下学期期中数学试题
江苏省宿迁市沭阳县2019-2020学年高一下学期期中数学试题新课练18 直线的交点坐标与距离公式-2020年【衔接教材·暑假作业】新高二数学(2019人教版)黑龙江省鹤岗市第一中学2020-2021学年高二10月月考数学(文)试题山西省朔州市怀仁县怀仁一中云东校区2020-2021学年高二上学期第二次月考数学(文)试题(已下线)专练18 两条直线的交点坐标与两点间距离公式-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)2023版 湘教版(2019) 选修第一册 过关斩将 第2章 2.3.2 两条直线的交点坐标甘肃省民勤县第一中学2022-2023学年高二上学期第一次月考数学试题
10 . 已知直线
:
.
(1)求证:无论
为何实数,直线
恒过一定点
;
(2)若直线
与
轴、
轴分别相交于
,
两点,点
为线段
的中点,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4d30511c73a3aa2024f3ac1f54ff2e.png)
(1)求证:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次