名校
解题方法
1 .
的三个顶点
,
,
,求:
(1)
边上的高所在直线方程;
(2)AC边上的中线所在直线方程及中线的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4193c0af60bce74c8f575dc8dc3ea0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc527ed77434ebd2766e322ae0703b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deaaaa0db2aa5b7bf70aabb65edbe496.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)AC边上的中线所在直线方程及中线的长度.
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名校
解题方法
2 . 已知
的三个顶点分别为
.
(1)求
边所在直线的方程;
(2)求
边上的高所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210abe60c91b359e64411232b968b5e5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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2023-12-20更新
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2卷引用:广东省云浮市罗定中学城东学校2023-2024学年高二上学期12月月考数学试题
3 . 已知
的平分线所在的直线的方程为
.
(1)求AB的中垂线方程;
(2)求AC的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881a13d12c2ce3a8171ab464ae42a143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
(1)求AB的中垂线方程;
(2)求AC的直线方程.
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2卷引用:广东省珠海市香樟中学2023-2024学年高二下学期开学收心练习数学试题
名校
解题方法
4 . 如图所示,已知三角形的三个顶点为
,求:
所在直线的方程;
(2)
边上的高
所在直线的方程;
(3)三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0fc5c584026250371ca17ab4e095187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(3)三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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2023-11-15更新
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2卷引用:广东省清远市四校联盟2023-2024学年高二上学期期中数学试题
名校
解题方法
5 . (1)已知
的顶点
,AB边上的中线CM所在的直线方程为
,AC边上的高BH所在直线方程为
,求直线BC的方程;
(2)已知直线l过点
.若直线l在y轴上的截距为
,在x轴上的截距为
,且满足
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f129d441ab39d195cb2580c46065d0fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
(2)已知直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571585854054fd8eefffda95dea751cc.png)
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6 . 已知直线
.
(1)当
时,求直线
与直线
的交点坐标;
(2)若直线
交
轴负半轴于点
,交
轴正半轴于点
.
①
的面积为
,求
的最小值和此时直线
的方程;
②已知点
,当
取最小值时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c41eec7985a72985bba35f2c3ba435c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f129d441ab39d195cb2580c46065d0fb.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
②已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f40d5459e1385ab7d829ea96ca0b946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e61fee4a185f3151d662fcc52e01c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
解题方法
7 . 已知直线l经过点
.
(1)若原点到直线l的距离为2,求直线l的方程;
(2)若直线l被两条相交直线
和
所截得的线段恰被点P平分,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577620a3b886932bbcf2f2f3dd725d87.png)
(1)若原点到直线l的距离为2,求直线l的方程;
(2)若直线l被两条相交直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b608ae33d374f27a639c38537ae4e1ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6f6cf9629fdf5690dd07717788874d.png)
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23-24高二上·广东佛山·阶段练习
名校
解题方法
8 . 已知直线
.
(1)求证:无论
为何值,直线
恒过定点;
(2)若直线
交
轴负半轴于
,交
轴正半轴于
的面积为
(
为坐标原点),求
的最小值和此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8432121f5edebf529aea79f712d4f34.png)
(1)求证:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b876b4cf710f54e8044de87ff520d0.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15da8f8aa14eb92021a511cbee26060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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23-24高二上·全国·课后作业
9 . 已知
的顶点坐标为
,
,
.
(1)求
边上的高
的长.
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f20953302d861e6c698575bfbab1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d7d75a66dd9e14c866e39e82074d70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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6卷引用:广东省肇庆鼎湖中学2023-2024学年高二上学期12月月考数学试题
广东省肇庆鼎湖中学2023-2024学年高二上学期12月月考数学试题(已下线)2.4 点到直线的距离湘教版(2019)选择性必修第一册课本例题2.4 点到直线的距离(已下线)高二上学期第一次月考十六大题型归纳(基础篇)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)福建省龙岩市永定区侨育中学2023-2024学年高二上学期一次质量检测数学试题四川省宜宾市屏山县2023-2024学年高二上学期期末数学试题
10 . 根据下列条件分别写出直线的方程,并化为一般式方程.已知直线
:
,
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a45ece4079a4eb0040eab26b586db78.png)
(1)经过直线
与
的交点,且与坐标原点
距离为
的直线;
(2)一入射光线经过点
,被直线
反射,反射光线经过点
,求反射光线所在直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8bf4c5441af2933c5bd4422b3dfad28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a45ece4079a4eb0040eab26b586db78.png)
(1)经过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(2)一入射光线经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96d7ef8fac91f9e0a47cee120b1f68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1a185b39930a8e2b1560ae9490b8a1.png)
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2023-10-29更新
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3卷引用:广东省惠州市惠州一中实验学校2023-2024学年高二上学期期中数学试题