如图,在平面直角坐标系中,菱形
的一边
在
轴上,
,反比例函数
过菱形的顶点
和
边上的中点
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/2019/12/31/2367017058910208/2367787740610560/STEM/395546872c1244a6b29adeb5cfa09c4b.png?resizew=304)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607543bb9f55b8a141ed2d6cf0e1a20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2d3f02cb9007cd4a90ea30f6dd8181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bd7e92dae1e0c2af6c33d5e202f544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://img.xkw.com/dksih/QBM/2019/12/31/2367017058910208/2367787740610560/STEM/395546872c1244a6b29adeb5cfa09c4b.png?resizew=304)
A.-4 | B.![]() | C.-5 | D.![]() |
更新时间:2020-01-01 09:39:24
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【推荐1】如图,在平面直角坐标系中,矩形ABCD的顶点A,B在x轴的正半轴上,反比例函数
的图象经过顶点D,分别与对角线AC,边BC交于点E,F,连接EF,AF.若点E为AC的中点,
的面积为1,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a37e8519ea115c1777d031d9963583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
A.![]() | B.![]() | C.2 | D.3 |
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【推荐2】如图,▱OABC的周长为14,∠AOC=60°,以O为原点,OC所在直线为x轴建立直角坐标系,函数y
(x>0)的图象经过▱OABC的顶点A和BC的中点M,则k的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/22/1b8c08f4-c226-4a46-a76f-933f1ce9d7d8.png?resizew=120)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860c93fe10745d9539006b34f374ccfd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/22/1b8c08f4-c226-4a46-a76f-933f1ce9d7d8.png?resizew=120)
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【推荐1】如图,
是
的直径,点
是圆上任意一点,点
是
中点,
交
于点
.
交
于点
,若
.则
的值为( )
![](https://img.xkw.com/dksih/QBM/2020/3/30/2430830504960000/2430890346455040/STEM/e6656c4733b1409eb1e416f894fdfa81.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c81694d5be9f0e1f9aff1369352ecf.png)
![](https://img.xkw.com/dksih/QBM/2020/3/30/2430830504960000/2430890346455040/STEM/e6656c4733b1409eb1e416f894fdfa81.png?resizew=137)
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【推荐2】如图,双曲线
经过
斜边
上的点
,与直角边
相交于点
,已知
,
的面积为5,则
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/40c71329-154f-43ac-b77a-a2deecddd1c2.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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