如图,
顶点的坐标分别为
,
,
,已知
与
关于y轴.
![](https://img.xkw.com/dksih/QBM/2021/1/28/2645862407995392/2645874566070272/STEM/3577ee90-5da4-491a-97f6-f6f2eefc2d4d.png?resizew=347)
(1)请在图中画出
,并写点
,
,
的坐标;
(2)设直线l过点B和点
,动点M在x轴上,动点N在直线l上,连接AM,MN,NC.已知
.当
最小时,画出线段MN的位置,并写出点M,N的坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5146140f0c6faa7dbeaa05e9053ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0de5a998c7165272b2e51c8620ff8b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4261c47b82f9bf3b3ec9337b5f3ebec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://img.xkw.com/dksih/QBM/2021/1/28/2645862407995392/2645874566070272/STEM/3577ee90-5da4-491a-97f6-f6f2eefc2d4d.png?resizew=347)
(1)请在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设直线l过点B和点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33a3f384acb53b5a21521a77ac0b1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac072f9aeade36f98cdd96f48a1eb722.png)
更新时间:2021-01-28 15:08:29
|
相似题推荐
解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图在平面直角坐标系中,直线
分别交
轴,
轴于
、
两点,点
的坐标为
,且点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/14/7e7a1b6b-fde1-4b32-9d73-7dfc8f21e185.png?resizew=342)
(1)求点
坐标;
(2)若点
、
关于直线
对称,在备用图中画出直线
,再求直线
的函数解析式;
(3)点
是直线
上的动点,点
是y轴上的动点,当B、C、M、N为顶点的四边形是平行四边形时,求点N的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80e3a3b6c6513a45506f605638f5655.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/14/7e7a1b6b-fde1-4b32-9d73-7dfc8f21e185.png?resizew=342)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80e3a3b6c6513a45506f605638f5655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】在平面直角坐标系中,O为坐标原点,抛物线
的对称轴为直线
,与x轴交于A,B两点,与y轴交于点C,已知
.
(1)求a,b的值;
(2)已知横坐标为t的点P为对称轴左侧的抛物线上一动点,过点P作x轴的平行线交抛物线于另一点M,
①若
与
的面积之和为8,求t的值;
②过点P作x轴的垂线
,垂足为N,直线
交线段
于点D,是否存在这样的点P,使
?若存在,求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ceba6b11658f2cc227b1f550ba25c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d599059e6b2c918ab15ee22611b6962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
(1)求a,b的值;
(2)已知横坐标为t的点P为对称轴左侧的抛物线上一动点,过点P作x轴的平行线交抛物线于另一点M,
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29eaf0ed8d20d6cac5d614570a5e8267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699ccb1d8c438f5bc838cd3c55dacda0.png)
②过点P作x轴的垂线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b919243174429ef748179e1b3d4f46.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】抛物线
与x轴交于A,B两点(点A在点B的左侧),与y轴交于点C,点D与点C关于x轴对称.
(1)求点A,B,C的坐标;
(2)求直线
的解析式;
(3)在直线
下方的抛物线上是否存在一点P,使
的面积最大?若存在,求出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7adf7d8633d28a374782ed1b67dcfadc.png)
(1)求点A,B,C的坐标;
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(3)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在直角坐标系中,
的位置如图所示,请回答下列问题:
,
,
三点的坐标;
(2)画出
关于
轴对称的
;
(3)在
轴上找到一点
,使
的周长最小,直接写出这个周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
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