如图,在直角坐标系中,
的边
在y轴上,
,
,点C在
上,
,且
,若双曲线
经过点C,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fdfa5407cfa15978f3557cacdf27c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb8015df9744ca1df1f736a1ce20b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2961c2afded1adb0e7a77c65cba0a2e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421752539b10e5fba88215690dc37a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
A.![]() | B.![]() | C.1 | D.2 |
更新时间:2024-03-21 13:00:09
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【推荐1】已知点
在反比例函数
的图象上,则k等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eae019053ae564f08c01487f7ff7986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
A.6 | B.![]() | C.![]() | D.-6 |
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【推荐2】若反比例函数
的图像经过点
,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fe874d253faa184f61b1a3d7de7fd5.png)
A.![]() | B.15 | C.![]() | D.![]() |
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【推荐1】如图,是用杠杆撬石头的示意图,C是支点,当用力压杠杆的A端时,杠杆绕C点转动,另一端B向上翘起,石头就被撬动.现有一块石头,要使其滚动,杠杆的B端必须向上翘起10cm,已知杠杆的动力臂AC与阻力臂BC之比为5∶1,则要使这块石头滚动,至少要将杠杆A端向下压( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/14/f842a266-3480-4c79-9465-9c94653d85e7.png?resizew=198)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/14/f842a266-3480-4c79-9465-9c94653d85e7.png?resizew=198)
A.100cm | B.60cm | C.50cm | D.10cm |
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【推荐2】如图,△ABC的两条高AD,BE交于点F,连接ED,则下列结论:①△ADC∽△BDF;②△BEC∽△ADC;③△ABD∽△ABE;④△ABC∽△DEC;⑤△BDE∽△AED;⑥△BDF∽△AEF.正确的为( )
![](https://img.xkw.com/dksih/QBM/2021/11/4/2843800689311744/2844062223056896/STEM/38aff94e3690456f822c3f4d47ff8ea2.png?resizew=158)
![](https://img.xkw.com/dksih/QBM/2021/11/4/2843800689311744/2844062223056896/STEM/38aff94e3690456f822c3f4d47ff8ea2.png?resizew=158)
A.①②③④ | B.①②④⑥ | C.①②⑤⑥ | D.②③④ |
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