如图,直线
与反比例函数
的图象交于点
,与x轴交于点B,与y轴交于点D.
![](https://img.xkw.com/dksih/QBM/2022/5/19/2982718996897792/3073247688081408/STEM/14998e53ec914d53ab27c7676d946208.png?resizew=238)
(1)求m的值和反比例函数的表达式;
(2)观察图象,直接写出不等式
的解集;
(3)在反比例函数图象的第一象限上有一动点M,当
时,直接写出点M纵坐标
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e488bcf5c0eacfb5cb27a70038d4f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26820332294b112e27b8d7ffa4ae8631.png)
![](https://img.xkw.com/dksih/QBM/2022/5/19/2982718996897792/3073247688081408/STEM/14998e53ec914d53ab27c7676d946208.png?resizew=238)
(1)求m的值和反比例函数的表达式;
(2)观察图象,直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbd6b86739af94586b17d654414daf9.png)
(3)在反比例函数图象的第一象限上有一动点M,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f0f4b02e16622b47af4da4cd73ed55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a2396c671fb0b83df5cad5d5889449.png)
21-22九年级下·江苏苏州·期中 查看更多[2]
江苏省苏州市吴江区铜罗中学、盛泽一中2021-2022学年九年级下学期期中数学试题(已下线)专题6.26 反比例函数与动点问题(巩固篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(北师大版)
更新时间:2022-09-24 10:41:20
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,点A(-3,2)和点B(m,n)在反比例函数y=
(k≠0)的图象上(其中m>0),AC⊥x轴,垂足为C,BD⊥y轴,垂足为D,直线AB与x轴相交于点E.
(1)写出反比例函数表达式;
(2)求tan∠ABD(用含m的代数式表示);
(3)若CE=6,直接写出B点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956237ef28b558110df15741ebc2c440.png)
(1)写出反比例函数表达式;
(2)求tan∠ABD(用含m的代数式表示);
(3)若CE=6,直接写出B点的坐标.
![](https://img.xkw.com/dksih/QBM/2019/5/1/2194139842166784/2196616743608320/STEM/18f26fc03e5740a6abf681d5b3a5b851.png?resizew=263)
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【推荐2】阅读理解:对于任意正实数
、
,
,
,
,只有当
时,等号成立.
结论:在
、
均为正实数
中,若
为定值
,则
,只有当
时,
有最小值
.
根据上述内容,回答下列问题:
![](https://img.xkw.com/dksih/QBM/2022/3/26/2944395316027392/3037312765526016/STEM/bba262a5619747eda0d58c03b133ed02.png?resizew=186)
(1)若
,只有当
______时,
有最小值______.
(2)探索应用:如图,已知
,
,
为双曲线
图像上的任意一点,过点
作
轴于点
,
轴于点
求四边形
面积的最小值.
(3)判断此时四边形
的形状,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f27f5e6dc31fe191061f8fbab906b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba15b91fbd45bd2e50b85fb36cafb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5236ebaf85f88312d5cc7b9d1d8d08b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
结论:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5210e0e5863f888b80cc3cf494194cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01d69fea806f3ceaf77966a16ebfbb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280f7cc99fa100b85cc7a133811a9a8d.png)
根据上述内容,回答下列问题:
![](https://img.xkw.com/dksih/QBM/2022/3/26/2944395316027392/3037312765526016/STEM/bba262a5619747eda0d58c03b133ed02.png?resizew=186)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3ce3c4248cc667deffe01286c896d1.png)
(2)探索应用:如图,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4d8e0f539ec84b3b97dc230522018f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbba3bc5e72728089890d07fb762e738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e7c6d54b0d73fa8d3af7f2a4d7f049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31940149def6907c303bb48f25fd6bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e7170bb4a2ddcef39391a06c989162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)判断此时四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐1】如图,正比例函数
的图象与反比例函数
的图象交于点
,在
中,
,
,点C坐标为
.
所在直线的解析式;
(2)P是x轴上一点,当
的面积为5时,求点P的坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9940526785ca763da2dfa35e77c934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb51e77ce13329721f3f8ab1ad3add7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee8c50793afd59e6ab4a2be5a877759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)P是x轴上一点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,在平面直角坐标系
中,直线
与双曲线
交于
,
两点,与
轴交于点
,与
轴交于点
,其中点
的坐标为
.
的表达式;
(2)将直线
沿
轴向下平移,当平移后的直线
与双曲线只有一个交点时,请求出直线
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251978c83546fb026a2e2f2107fc1772.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/289ada46dd6a8dd75aba834709f09def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(2)将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
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