1 . 直线
分别交
轴、
轴于
两点,直线
与
相交于点
,与
轴相交于点
,如图.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/7/229aa615-5c76-420e-b542-4ead354ace45.png?resizew=204)
(1)求
点坐标;
(2)作平行于
轴的直线分别交
于
两点,已知点
的纵坐标为
,若
的面积等于
面积的一半, 求
的长;
(3)若点
在线段
上(可与
重合),求点
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2566d21b3d25c7eff896134271fb37c5.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/7bd0dd9cd31e3bbc3a84ca8559767adb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dad45228871eaeb7c21ecf286812b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/7/229aa615-5c76-420e-b542-4ead354ace45.png?resizew=204)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)作平行于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50297ad9f7256b4d2efc3462289f18b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39097a7389d65e9bcdf0b4009252f9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7eb1f15a73acf2bc341a0819c0d848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2020-06-28更新
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