在平面直角坐标系中,若点
的坐标满足
,则我们称点
为“健康点”;若点
的坐标满足
,则我们称
为“快乐点”.
(1)若点
是“健康点”,则点
的坐标为 .
(2)在(1)的条件下,若点
是
轴上的“健康点”,点
是
轴上的“快乐点”,如果
为
轴上一点,且
与
面积相等,求点
的坐标.
(3)在上述条件下,直线
与
轴所夹的锐角为
,直线
与
轴所夹的锐角为
,试探究
与
和
之间的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6270dacc713850044f3ab84bb80482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b360624d10f31d0b44ec86f06fa40d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defd208a1573c26c88e0ed21c5f89ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3572e702c45e5a4a1660ac1ac3d626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/22/dffe3c40-4ecb-41b9-9aa2-d20a2bcf727d.png?resizew=282)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fdda94b6e9192144b3880c40c0c47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在(1)的条件下,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf43dd8ad586f4954a44f678b4aa83b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)在上述条件下,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
更新时间:2023-08-02 10:20:55
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】已知
在如图所示的平面直角坐标系中.
(1)直接写出三个顶点的坐标:A(________),B(________),C(________)
(2)将A、B、C三点的纵坐标保持不变,横坐标分别乘
,得到点
、
、
,在图中描出点
、
、
,并画出
;
(3)
边上的高为_______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)直接写出三个顶点的坐标:A(________),B(________),C(________)
(2)将A、B、C三点的纵坐标保持不变,横坐标分别乘
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.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)
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/c2646611-1283-422a-9744-0e1d436ccb04.png?resizew=235)
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解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,在平面直角坐标系中,
、
,
为
轴正半轴上一点,
在第四象限.若
,
平分
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/2a4d2ddc-be82-41c2-b97e-66e125243191.png?resizew=241)
(1)直接写出
点坐标(___________,___________);
(2)求证:
;
(3)求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c6abf1c9bc89e3fb025aa9a8e9e4b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affe07094a1b987a5582672c350c75b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4579332087ee585f1cae423a6ae1862.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/2a4d2ddc-be82-41c2-b97e-66e125243191.png?resizew=241)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
(3)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,已知直线
分别与
,
轴交于点
、
,与直线
相交于点
,点
为直线
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/9ab9f8a6-0ea3-4737-b40b-b31ca1eac222.png?resizew=190)
(1)
,
;
(2)当
取何值时,
.
(3)若
的面积为
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a98e24892abc0eb34d5216d4e89c61.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/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd65fdb203eb0bf1526a5d072c4ce8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a98e24892abc0eb34d5216d4e89c61.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/9ab9f8a6-0ea3-4737-b40b-b31ca1eac222.png?resizew=190)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e3a8ab62b2f3e224143689c371f1c2.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee780a7d0e8811fb04d955304543fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,直线y=-2x+8分别交x轴,y轴于点A,B,直线
交y轴于点C,两直线相交于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/3d1eee6c-a67f-48a8-be73-c79e1a59b0ae.png?resizew=506)
(1)求点D的坐标;
(2)如图2,过点A作
轴交直线
于点E,连接AC,BE.求证:四边形ACBE是菱形;
(3)如图3,在(2)的条件下,点F在线段BC上,点G在线段AB上,连接CG,FG,当CG=FG,且∠CGF=∠ABC时,求点G的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887d13887d7e80f5acd551b54561bdf5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/3d1eee6c-a67f-48a8-be73-c79e1a59b0ae.png?resizew=506)
(1)求点D的坐标;
(2)如图2,过点A作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebef5e61e07825ae56ef0ad653d15aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887d13887d7e80f5acd551b54561bdf5.png)
(3)如图3,在(2)的条件下,点F在线段BC上,点G在线段AB上,连接CG,FG,当CG=FG,且∠CGF=∠ABC时,求点G的坐标.
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