如图,在平面直角坐标系中,
的顶点B的坐标为
,
平分
交
于点C,反比例函数
的图象经过点A,C.若
,则k的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/60563b54-6990-4f98-ae3d-84b73f0bf24f.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb13bbc5335efc427f9c619a51dae3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9510caac8a3fd09196323308e835ed1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72d494123371c165256492041855928.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/60563b54-6990-4f98-ae3d-84b73f0bf24f.png?resizew=164)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-02-25 03:47:07
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【推荐1】如图,在平面直角坐标系中,等腰直角三角形ABC的直角顶点A的坐标为(2,0),顶点B的坐标为(0,1),顶点C在第一象限,若函数y=
(x>0)的图象经过点C,则k的值为( )
![](https://img.xkw.com/dksih/QBM/2019/1/7/2113498073497600/2115835686174721/STEM/7731d991ca0742afbaf207f661c1f8ef.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
![](https://img.xkw.com/dksih/QBM/2019/1/7/2113498073497600/2115835686174721/STEM/7731d991ca0742afbaf207f661c1f8ef.png?resizew=177)
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真题
【推荐2】如图,点
都在双曲线
上,点
,分别是
轴,
轴上的动点,则四边形
周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773760494231552/1773760494428160/STEM/805394dccc324caaba33473b25541143.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773760494231552/1773760494428160/STEM/0883189c8ba8428a8a2a4dbe7c49750f.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773760494231552/1773760494428160/STEM/ce0ac6673f714e9c8319b22cedd7f439.png)
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![](https://img.xkw.com/dksih/QBM/2017/8/1/1773760494231552/1773760494428160/STEM/bbf461657107411abec913bf223576b8.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】若反比例函数y=﹣
的图象经过点A(2,m),则m的值是( )
![](https://img.xkw.com/dksih/QBM/2016/4/28/1574198756401152/1574198762659840/STEM/a25e250cb58f47d6ba1d8944a6868cc7.png)
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【推荐2】如图,点
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,
是等边三角形,点
在第一象限,若反比例函数
的图象经过点
,则
的值( )
![](https://img.xkw.com/dksih/QBM/2020/7/13/2511611821989888/2512685308428288/STEM/05c17c3a-8994-4640-89a5-726dcfce7a24.png?resizew=267)
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【推荐1】如图,AD是△ABC中∠BAC的角平分线,DE⊥AB于点E,S△ABC=7,DE=2,AB=4,则AC长是( )
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620508276064256/2623362485338112/STEM/5bc92cb14cf646ddbe422ede5a670db8.png?resizew=169)
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【推荐2】如图,∠DAC=∠ADC=22.5°,DC∥AB,DE⊥AB于E,若AC=4,则DE的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/23/2da7a050-a184-452e-97a8-271b95d692d9.png?resizew=265)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/23/2da7a050-a184-452e-97a8-271b95d692d9.png?resizew=265)
A.2 | B.![]() | C.4 | D.![]() |
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【推荐1】已知如图,在
中,点
、点
分别在
、
边上,且
,
,
,
的面积为4,则
的面积为( )
![](https://img.xkw.com/dksih/QBM/2019/12/10/2352167906541568/2352972925829120/STEM/793ecacd83d9494290faaaa9345a02c8.png?resizew=177)
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【推荐2】如图,正方形ABCD的边长为2,E是BC边的中点,过点B作BG⊥AE,垂足为G,延长BG交AC于点F,则CF的长为( )
![](https://img.xkw.com/dksih/QBM/2018/12/11/2094311239131136/2096074878279680/STEM/280b6d247d354c0d9e7cc8e319939523.png?resizew=98)
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