直线
过原点且平分平行四边形
的面积,若此平行四边形的两个顶点为
、
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8159754fa962579d7dcb79da0ba1908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854390524d8a76983fa263094df4a548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
23-24高二上·全国·课后作业 查看更多[1]
(已下线)复习题(一)
更新时间:2023-09-12 10:35:08
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解答题-问答题
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【推荐1】写出下列直线的斜截式方程:
(1)直线斜率是
,在y轴上的截距是
;
(2)直线倾斜角是
,在y轴上的截距是
;
(3)直线在
轴上的截距为
,在y轴上的截距为
.
(1)直线斜率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
(2)直线倾斜角是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
(3)直线在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
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解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】(1)已知点P坐标为
,求过点P且在两坐标轴上截距相等的直线;
(2)经过
两点,且圆心C在直线
上,求圆C的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d7fb81c2fb79673d13c37c670f02ed.png)
(2)经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b3c4bda5ac3970daa9e842f63dcb4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c023cf7b397fe6e2c173cc8131fe60.png)
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知
中,点
,
,点
在直线
:
上.
(1)若
为
与
轴的交点,求
的面积;
(2)若
是以
为底边的等腰三角形,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397d7476fadbc4f22e4c7c4fd693a57f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e396c83557ec8b2b4b12d97d6738819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18feaed4f3dd7698210ba302c81dca6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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【推荐2】在①A(4,a),B(-2,4);②A(b,6),B(-2,b);③A(4,6),B(c,4)中任选一个,补充在下列问题中,并解答.已知A,B的中点坐标是(1,5),且______.
(1)直线AB的方程;
(2)以线段AB为直径的圆的方程.
(1)直线AB的方程;
(2)以线段AB为直径的圆的方程.
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