名校
1 . 在数学上,我们不妨约定,两个关于原点对称的函数称为“集聚”函数,
的“集聚”函数;
(2)如图,直线
与函数
交与A、
两点,直线
的“集聚”函数与函数
交于
、
两点,四边形
为矩形且三角形
的面积为
,求
的值.
(3)函数
与
轴交于
、
两点,与
轴交于
,函数
的“集聚”函数与
轴交于点
,点
在三角形
的外接圆的
上运动,
为三角形
的内心,当
从
运动到
时,求内心
的运动路径长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c1212804e6d784756d48083d166e8.png)
(2)如图,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fc06624efa4c3797aea0b4fb9a472d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7163395f9aaa29be7f6b3106ba48b744.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a136dd28e63b359bfb244280f3eecaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b6917095bea8efd3154b72d737f013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b0b0494b994fa27ec55342e840b785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf62b9fe96ad0b0f58c8b3ba3075ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
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名校
2 . 如图,
的内接三角形
中,
,
,
,点
在圆上运动.
为
的切线;
(2)若三角形
是等边三角形时,
,求
的最大值;
(3)如图,连接
,
,当
,
,
时,设此时
的面积为
,
的面积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de13b90ee61450dcf26f2f04b010b3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bd02e0adeae92ba9526261b1baf797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb565d8dd24c9a9c28257ddbf2d6dc3.png)
(3)如图,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5edc41a39a9b1bae0dcb54052efce21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b03bf58cba56d1b98a8a457982870b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3466844f8a22cf5a520b8f2d746dcf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f15ba851a0f65c271ec774095516f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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3 . 如图,在
中,
,
D,E分别为
上两动点,
.
于H交
于K,求证:
;
(2)如图2,若
交
于F,
,
,求证:
;
(3)如图3,若
,将
绕点E顺时针旋转
得
,N为
中点,当
取得最小值时,请直接写出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a717e6dc97553f48fcdbc36247884efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725d5bbc12a368f5b66822a9031642df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdbb8115a98f2c7de0414c5ada04872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4389c79081a41e1204df7ffd7773e21c.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b13d0d67074196c99728a6bcb778e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00131660f24d696edaefaf79d93d1d0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edada07f1fb552fcdcf409fa1d46034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c65cbf10fad816e63db8e5b19e8d1a.png)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d527d4795ece4a5756d1cf8dba31e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a0387fc1258f31e44a10068c0ccfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f30cb81835298cb612a828f355060a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0e65e147b109f2bbfd3a3f502bbc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0ba296d917c815bce5b9aeb161e8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a783e5ffcf7a4ea9e531ea76199487.png)
您最近一年使用:0次
2024-04-10更新
|
385次组卷
|
6卷引用:重庆市第一中学校2023-2024学年九年级上学期数学开学考试试题
重庆市第一中学校2023-2024学年九年级上学期数学开学考试试题重庆市沙坪坝区第八中学校2022-2023学年八年级下学期期末数学试题(已下线)数学(重庆卷)-学易金卷:2024年中考第一次模拟考试重庆市渝北区六校联盟2023-2024学年九年级下学期第一次月考数学试题2024年重庆市渝北区 九年级下学期教学大练兵数学试题(已下线)考题猜想3-1平行四边形(构造平行四边形解题的6种应用类型)-2023-2024学年八年级数学下学期期末考点大串讲(人教版)
4 . 已知
内接于
,连接
并延长交
于点D,过点D作
于E,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/0d367f43-08a7-43bd-af83-4bb3d017b75b.png?resizew=151)
(1)
与
的数量关系为______ ;
(2)连接
交
于点F,延长
交
于点G,连接
.若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd3b3056c95e2b1290c0a8b4e89ae7d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/0d367f43-08a7-43bd-af83-4bb3d017b75b.png?resizew=151)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8007791a341b231451e5a69edf6f497a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474985e57ce1393d019221c421485ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
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名校
5 . 如图,在平面直角坐标系中,抛物线
与x轴交于A,
两点,与y轴交于点
,点P是第三象限内抛物线上的一个动点,连接
,
,
.
(2)
的面积是否存在最大值?若存在,请求出
面积的最大值及此时P的坐标;若不存在,请说明理由;
(3)设直线
与直线
交于点
,若存在
与
中一个是另一个的2倍,请直接写出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4218690b49de906a22dda72c578956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5abc4464f8c0424a6c896617321757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c7bbe0ac1c88c9d35978a7184ba553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2024-04-01更新
|
139次组卷
|
4卷引用:广东省中山市中山纪念中学2023-2024学年九年级下学期开学考试数学试题
6 . 如图,
的斜边
在
轴上,
,
和
的长是方程
的两根
,
是
的中点,动点
从点
出发,以每秒1个单位长度的速度沿射线
运动,设运动时间为
秒,
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/af151ded-4535-4d38-8e0a-888814341c3d.png?resizew=175)
(1)求点
的坐标;
(2)求
关于
的函数解析式,并写出自变量的
取值范围;
(3)在点
的运动过程中,是否存在点
,使
是直角三角形?若存在,请直接写出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b601e6e1cbda997d161d46f3941492c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/716e7db12904859675ac97163bb5a7ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821a7292de84854ffe06e5e67565adb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a449b09b907a3246bc325fc645e114a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/af151ded-4535-4d38-8e0a-888814341c3d.png?resizew=175)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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名校
7 . 如图,在平面直角坐标系中,点C在y轴的正半轴上,点B与点A关于y轴对称,
为等边三角形,
,
.
(1)求点A的坐标;
(2)动点F从原点出发,以每秒1个单位长度的速度,沿x轴正方向运动,运动时间为t秒,求
的面积S与t之间的关系(用含t的式子表示S).
(3)在(2)的条件下,当点F运动到点A时,有一动点E从点C出发,以每秒1个单位长度的速度,沿线段
向终点B运动,当点E到达终点时,点E、F运动停止,连接
交
于点G,交y轴于点K,
①过点E作
于点H,求线段
的长;
②如图,当
,
时,在x轴负半轴有一点L,连接
,在y轴上取一点M,
,连接
并延长,交
于点N,若
.求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94d4b95f18bab206e826d3037729ca7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/e4c981d2-741e-484a-bf5f-0b02ebffd072.png?resizew=305)
(1)求点A的坐标;
(2)动点F从原点出发,以每秒1个单位长度的速度,沿x轴正方向运动,运动时间为t秒,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fb6e81fee5674c3e26a65e58cc506d.png)
(3)在(2)的条件下,当点F运动到点A时,有一动点E从点C出发,以每秒1个单位长度的速度,沿线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
①过点E作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790db8e233280bec605fb7b6c3dfb873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
②如图,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f378715d5e434de4d6d6ae5f1c9ba84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d10004d5af8b05905dd6ee6930aac24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae57e49b519bb89ea02274318a34438d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c422d2458b1f403aefc35f110ff61d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae57e49b519bb89ea02274318a34438d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44143d40a474054c435a15241a81f62a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/16ae3411-4849-4f01-abf1-e2dcf920d1bb.png?resizew=166)
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8 . 平面直角坐标系中,点
,点
知a、b满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/b0face3c-0272-40ea-9486-22461c1289e6.png?resizew=303)
(1)求点A、点B的坐标;
(2)如图1,点
为线段
上一点,连接
,过
作
,且
,连接
交
轴于点
,若点
,求点
的坐标;
(3)在(2)的条件下,如图2,过
作
交
于
,点
是射线
上一点(点
不在线段
上),连接
,作
,
交线段
的延长线于点
,连接
,猜想线段MN与OM的关系并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a68f6929ecf49fe0f921f1b7fd76ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d87688d3f240584821be35acd98c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46fcca288ff54e81b138bcc4db35b97.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/b0face3c-0272-40ea-9486-22461c1289e6.png?resizew=303)
(1)求点A、点B的坐标;
(2)如图1,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ed934aa29859e93b1f758229a12581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac3d3b55561ec5d4acc242ecd1c7f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.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/b7ff329f3b12cf5678e99941e7188621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)在(2)的条件下,如图2,过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b063a62bb7cdfa2a67194798b4c4564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6b253b7f7aa120fa6dd980bfc5fabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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9 . 如图1,已知线段
,
,线段
绕点A在直线
上方旋转,连接
,以
为边在
上方作
,且
.
(1)若
,以
为边在
上方作
,且
,
,连接
,求证:
;
(2)如图2,在(1)的条件下,若
,
,
,求
的长;
(3)如图3,若
,
,
,当
的值最大时,求此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe96b7437857c3718d3e2f17a297e7ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1983c41ebdacc818687e43642f8fb670.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/76be254d-64b3-4a35-a055-2189392aed70.png?resizew=414)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20cb14fea4a7cad4b7775a3dd67df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26aa9a1ea33471842d143c35aedef010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1070d38d2fea1dc88c6eb31d320b763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81c81d709cb6c1a78cd433fcb8e0751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56d87864afc469496602b6134f26e34.png)
(2)如图2,在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7820671eada511601704ccc25f6f8187.png)
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10 . 如图1,已知二次函数
的图象与x轴交于点
、B两点(点A在点B左侧),与y轴交于点C,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/c9e04d5f-fc3f-463e-abe2-3b377bf94ec9.png?resizew=454)
(1)求二次函数的解析式;
(2)如图2,过点C,作
轴交二次函数图象于点D,P是二次函数图象上异于点D的一个动点,连结
、
,若
,求点P的坐标;
(3)如图3,若点P是二次函数图象上位于
下方的一个动点,连结
交
于点Q.设点P的横坐标为t,试用含t的代数式表示
的值,并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37efb179686525e1a0aec162008f605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d57173ef4cd72eb270686875dfd623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684fddfcb7de9fd75193e92cc9d734e2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/c9e04d5f-fc3f-463e-abe2-3b377bf94ec9.png?resizew=454)
(1)求二次函数的解析式;
(2)如图2,过点C,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d6eb67e32034c7c7312d6442e5ef40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef11aad7660b0a54882eee45db6552a7.png)
(3)如图3,若点P是二次函数图象上位于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595ac5009c16f2b386b5b1cbaf65eec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595ac5009c16f2b386b5b1cbaf65eec8.png)
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