如图,在平面直角坐标系
中,
是以点
为直角顶点的等腰直角三角形,点
在第二象限,点
在
轴负半轴上,点
是
的中点且反比例函数
的图象经过点
.
![](https://img.xkw.com/dksih/QBM/2023/4/18/3218997599191040/3219891059556352/STEM/8a30dcf1d9224dc4a4ff1b4f9e6a8909.png?resizew=188)
(1)求反比例函数的解析式.
(2)若点D是反比例函数
的图象与
的交点,求点D的坐标.
(3)在(2)的条件下,直接写出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1241d15a5bef1aefdac4d5d2051d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cb90e72041e9139d4964f529ae1728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2023/4/18/3218997599191040/3219891059556352/STEM/8a30dcf1d9224dc4a4ff1b4f9e6a8909.png?resizew=188)
(1)求反比例函数的解析式.
(2)若点D是反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cb90e72041e9139d4964f529ae1728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)在(2)的条件下,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace07d078895165cf28b921e3c037247.png)
更新时间:2023-04-19 15:08:02
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适中
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真题
【推荐1】如图,反比例函数
的图象经过点(-1,
),点A是该图象第一象限分支上的动点,连结AO并延长交另一支于点B,以AB为斜边作等腰直角三角形ABC,顶点C在第四象限,AC与
轴交于点P,连结BP.
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/8904dd7a4a58451581efe21ca319dc59.png)
(1)
的值为
(2)在点A运动过程中,当BP平分∠ABC时,点C的坐标是
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/8180621994184be29f439392d3a04627.png)
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/9e9fc1f894844f4598a81750cb894083.png)
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/ff9838ca6625497ba4fcf449b26f4aa9.png)
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/8904dd7a4a58451581efe21ca319dc59.png)
(1)
![](https://img.xkw.com/dksih/QBM/2015/8/13/1573896464719872/1573896471068672/STEM/6846f2100f26471a800b6757ccac530c.png)
(2)在点A运动过程中,当BP平分∠ABC时,点C的坐标是
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【推荐2】反比例函数
的图像经过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0b7bb529-b0f1-4023-8379-2b84d58234dd.png?resizew=165)
(1)求k的值;
(2)点C在x轴的负半轴上,将点A绕点C顺时针旋转
,其对应点B落在此反比例函数第三象限的图像上,求点C的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a146b22c4a1c12b0349074fc8106d515.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0b7bb529-b0f1-4023-8379-2b84d58234dd.png?resizew=165)
(1)求k的值;
(2)点C在x轴的负半轴上,将点A绕点C顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
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【推荐1】如图,一次函数
与反比例函数
的图像交于
,
两点.
(1)求出
的值及一次函数的解析式;
(2)根据所给条件,请直接写出不等式
的解集;
(3)过点
作
轴,垂足为
,连接
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fd69e39f9238d1b89b37300c113004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/a1225405-8bfd-42dc-a1ad-6cb364ef0533.jpg?resizew=154)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)根据所给条件,请直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf2d21926a454061f49c0cbaccea977.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b45db8dd8768994af51206565379fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbff84327e964f912a54032e76ccc9.png)
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【推荐2】如图,已知直线
与反比例函数
的图象交于点
,与y轴交于点B,过点B作x轴的平行线交反比例函数
的图象于点C.
和反比例函数图象的表达式;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e95fb519f59c46f40e4ab44660073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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