在平面直角坐标系中,有
,
,
三点.
(1)当
轴时,求
的值;
(2)当点
到两坐标轴的距离相等时,求点
所在的象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a19d45f614003259e0420dadc65289b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d25d3fd42514d0d7f25ff4bd6731648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3ef8e99141ba5e484b40f67d9e6a7e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ecbb94ac8dfe5fbc3bffad8c9da301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
更新时间:2023-08-15 15:32:50
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解答题-问答题
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【推荐1】在如图所示的平面直角坐标系中表示下面各点:A(0,3),B(1,-3),C(3,-5),D(-3,-5),E(3,5),F(5,7),G(5,0).
(1)点A到原点O的距离是________;
(2)将点C沿x轴的负方向平移6个单位,它与点________重合;
(3)连接CE,则直线CE与y轴是什么关系?
(4)点F到x轴、y轴的距离分别是多少?
(1)点A到原点O的距离是________;
(2)将点C沿x轴的负方向平移6个单位,它与点________重合;
(3)连接CE,则直线CE与y轴是什么关系?
(4)点F到x轴、y轴的距离分别是多少?
![](https://img.xkw.com/dksih/QBM/2019/2/14/2140627172065280/2144080954425344/STEM/77e66039d7dc495c8eee25a1e5ec35d2.png?resizew=141)
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解答题-作图题
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【推荐2】如图,在平面直角坐标系中,
的顶点都在格点上,点A的坐标
,
,
将
先向右平移2个单位长度,再向下平移3个单位长度,得
.
(1)请画出
;
(2)请写出点
,
的坐标;
(3)请求出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d03268e486f9fb09a44eca7d8ff7a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266504a4bd910b292c74765dc9772f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656de1832d5046c5c0d242372ff48c08.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/editorImg/2023/6/8/4ff246bb-8fd9-464b-a84b-5bb442ee0a8a.png?resizew=251)
(1)请画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)请写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(3)请求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
【推荐1】已知点
,分别根据下列条件,求出点
的坐标.
(1)点
的纵坐标比横坐标大3;
(2)点
到
轴的距离为2,且在第四象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294e72e00b3e59876ff9988614ad69db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】抛物线
与
轴的公共点是
,
.
(1)求这条抛物线的对称轴;
(2)若该抛物线最高点到
轴的距离为
,求该抛物线的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
(1)求这条抛物线的对称轴;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐1】从
,
,2三个数中任取两个不同的数,作为点的坐标,用列表法或画树状图求该点在第三象限的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
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【推荐2】在给出的平面直角坐标系中描出点A(-3,4),B(-3,-3),C (3,-3),D(3,4),并连接 AB ,BC,CD ,AD.
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530692369506304/2531478921748480/STEM/598135cef13f469caf3cb80dcd92c063.png?resizew=169)
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