如图,点
,
都在反比例函数
的图象上,
轴于点
,
轴于点
,
于点
,
轴于点
,
,
,
,求反比例函数
的解析式及点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7385795d7eab9691e21172c51a97428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485101d50dd5eef3e4fb242adfca527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/53c79c4d655d22f6b3e9826adc6df810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf783d3172debc69f963495e5bff78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05ce6ff5103e9675a7eed0d1c1ab932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6370d6c626bdabf1fc694501ee6c714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7385795d7eab9691e21172c51a97428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/3/970e3a2c-7a1f-4364-a210-fc1b6bae2349.png?resizew=140)
更新时间:2024-01-29 20:47:45
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解答题-问答题
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【推荐1】如图,菱形ABCD在第一象限,点A、B分别在y轴、x轴上,对角线
轴,点
,反比例函数
的图象交边AD于点P,且AP∶PD=1∶2.
![](https://img.xkw.com/dksih/QBM/2022/5/18/2982041277718528/2985113331720192/STEM/85c66347-12bd-4e99-8118-131ecdceacb6.png?resizew=289)
(1)求k的值;
(2)将菱形ABCD沿y轴向下平移m个单位,当点D落在反比例函数
的图象时,求菱形ABCD平移所扫过的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bf093299f0a975d68dc684fb67a393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a7e9dcc6bbc751849f7f1c00767dc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
![](https://img.xkw.com/dksih/QBM/2022/5/18/2982041277718528/2985113331720192/STEM/85c66347-12bd-4e99-8118-131ecdceacb6.png?resizew=289)
(1)求k的值;
(2)将菱形ABCD沿y轴向下平移m个单位,当点D落在反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
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名校
【推荐2】如图,一次函数
的图象与反比例函数
的图象交于第一象限C,D两点,坐标轴交于A、B两点,连结OC,OD(O是坐标原点).
(1)利用图中条件,求反比例函数的解析式和m的值;
(2)求△DOC的面积.
(3)双曲线上是否存在一点P,使得△POC和△POD全等?若存在,给出证明并求出点P的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
(1)利用图中条件,求反比例函数的解析式和m的值;
(2)求△DOC的面积.
(3)双曲线上是否存在一点P,使得△POC和△POD全等?若存在,给出证明并求出点P的坐标;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/1d6ec72d-b48e-42a3-911b-0d72e02793e1.png?resizew=261)
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【推荐1】如图,直线y=x+m与反比例函数
相交于点A(6,2),与x轴交于B点,点C在直线AB上且
.过B、C分别作y轴的平行线交双曲线
于D、E两点.
![](https://img.xkw.com/dksih/QBM/2016/9/14/1574241145036800/1574241151442944/STEM/027db823d567464891852a7225f126c6.png)
(1)求m、k的值;
(2)求点D、E坐标.
![](https://img.xkw.com/dksih/QBM/2016/9/14/1574241145036800/1574241151442944/STEM/a85d3a30b29f4f7081b8e6a81b142d2c.png)
![](https://img.xkw.com/dksih/QBM/2016/9/14/1574241145036800/1574241151442944/STEM/8861f078cc8142db99211d0ca868a8ff.png)
![](https://img.xkw.com/dksih/QBM/2016/9/14/1574241145036800/1574241151442944/STEM/a85d3a30b29f4f7081b8e6a81b142d2c.png)
![](https://img.xkw.com/dksih/QBM/2016/9/14/1574241145036800/1574241151442944/STEM/027db823d567464891852a7225f126c6.png)
(1)求m、k的值;
(2)求点D、E坐标.
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【推荐2】如图,在平面直角坐标系
中,矩形
的顶点
在反比例函数
(
,
)的图象上,纵坐标分别为1和3,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a0de7a03a4e13bce29804e30bc7275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://img.xkw.com/dksih/QBM/2019/4/22/2187842591399936/2187920682614784/STEM/3f042a8a71eb479d94edfe81a5a268a9.png?resizew=142)
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真题
名校
【推荐1】鄂州市某校数学兴趣小组借助无人机测量一条河流的宽度
.如图所示,一架水平飞行的无人机在A处测得正前方河流的左岸C处的俯角为
,无人机沿水平线
方向继续飞行50米至B处,测得正前方河流右岸D处的俯角为30°.线段
的长为无人机距地面的铅直高度,点M、C、D在同一条直线上.其中
米.
![](https://img.xkw.com/dksih/QBM/2020/7/21/2510548940931072/2510572059320320/STEM/527fa245-2467-4ace-a157-b7ae92deaa7b.png?resizew=275)
(1)求无人机的飞行高度
;(结果保留根号)
(2)求河流的宽度
.(结果精确到1米,参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534a318fbf2b12ee13e108a7b197c5a8.png)
![](https://img.xkw.com/dksih/QBM/2020/7/21/2510548940931072/2510572059320320/STEM/527fa245-2467-4ace-a157-b7ae92deaa7b.png?resizew=275)
(1)求无人机的飞行高度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)求河流的宽度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cea34f4d3f2df4e62c5fe4a8a5693d4.png)
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【推荐2】为了满足市民的需求,某市在一条小河的两侧开辟了两条长跑锻炼线路,如图:①
;②
.经勘测,点
在点
的正东方,点
在点
的正北方
千米处,点
在点
的正西方
千米处,点
在点
的北偏东
方向,点
在点
的正南方,点
在点
的南偏西
方向.由于时间比较宽松,小明决定选择一条较长线路进行锻炼,请计算说明小明应该选择线路①还是线路②呢?(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9272946c16e164a9e56ac4e728410c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00131421d2987c168cd6c2fceadb11b5.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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