如图,
内接于
,
平分
交
边于点
,交
于点
,过点
作
于点
,设
的半径为
,
.
(1)过点
作直线
,求证:
是
的切线.
(2)求证:
.
(3)设
,求
的值(用含
的代数式表示).
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/fdf23e73ae2a15c04bbed3981cb8e511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aef4d063315292d0c2192f21df90432.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/17/18f76a05-9fc0-4e77-80e0-cd54d5e4c3d9.png?resizew=196)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48965f2e3a259c96e63dae1fcd95ac22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045b006ccaa0bee64ae9525733d1d67d.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1d3dbfbcaae8d354d7eb44c5debdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d994c7893d59fd8e9cb6b450bbd095d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
22-23九年级上·广东梅州·阶段练习 查看更多[2]
更新时间:2023-06-11 20:36:56
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相似题推荐
解答题-问答题
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较难
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【推荐1】 如图,正方形
的外接圆为
,点
在劣弧
上(不与
点重合).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/37622976-4595-4a8a-ba3c-948b1ef1fbdc.png?resizew=117)
(1)求
的度数;
(2)若
的半径为
,求正方形
的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12219ba6465bd8f4b097c4eeea737000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/37622976-4595-4a8a-ba3c-948b1ef1fbdc.png?resizew=117)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761b8d26fb4b6d20c364ee99045ac79d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
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【推荐2】如图,在平面直角坐标系中,抛物线
的顶点坐标为C(3,6),与
轴交于点B(0,3),点A是对称轴与
轴的交点.
(1)求抛物线的解析式;
(2)如图①所示,直线AB交抛物线于点E,连接BC、CE,求△BCE的面积;
(3)如图②所示,在对称轴AC的右侧作∠ACD=30°交抛物线于点D,求出D点的坐标;并探究:在
轴上是否存在点Q,使∠CQD=60°?若存在,求点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6337d68cd5653767e3a1889b8b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/5cadf442-fc50-4cb0-ad0d-6184f4bb3007.png?resizew=371)
(1)求抛物线的解析式;
(2)如图①所示,直线AB交抛物线于点E,连接BC、CE,求△BCE的面积;
(3)如图②所示,在对称轴AC的右侧作∠ACD=30°交抛物线于点D,求出D点的坐标;并探究:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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名校
【推荐1】如图,四边形ABCD为⊙O的圆内接四边形,AC=AD,点B为
的中点,点E为AC上一点,且
,F为直径AG的延长线上一点,且∠FDG=∠FAD.
![](https://img.xkw.com/dksih/QBM/2022/3/17/2937774345191424/2938913620926464/STEM/ddcf0e4838ee4fbb9bca36c99baaffeb.png?resizew=167)
(1)求证:DF是⊙O的切线;
(2)若∠BCA=55°,∠BAC=15°,求∠F的度数;
(3)若AC=AD=a,求
的最大值(用含a的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4518d799c5b3220648fc5d91c14ca59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://img.xkw.com/dksih/QBM/2022/3/17/2937774345191424/2938913620926464/STEM/ddcf0e4838ee4fbb9bca36c99baaffeb.png?resizew=167)
(1)求证:DF是⊙O的切线;
(2)若∠BCA=55°,∠BAC=15°,求∠F的度数;
(3)若AC=AD=a,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc5160b6864b7c7a1a30994362d6c43.png)
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【推荐2】如图,在
中,
,
,
,点
在
上,以
为圆心的圆记为圆
,圆
的半径为
.
![](https://img.xkw.com/dksih/QBM/2021/3/17/2679791044280320/2679910279626752/STEM/c755e26a7b644c91aea8b65e4917648e.png?resizew=193)
(1)若
,
,请判断圆
与边
的位置关系,并说明理由.
(2)若
,且圆
与边
只有一个交点,求
的取值范围,
(3)若
,
.
①求圆
与
的重合面积.
②试探究边
上是否存在另一点
,以
为圆心,半径为1的圆
与
的重合面积等于①中圆
与
的重合面积,若不存在,请说明理由;若存在,请求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://img.xkw.com/dksih/QBM/2021/3/17/2679791044280320/2679910279626752/STEM/c755e26a7b644c91aea8b65e4917648e.png?resizew=193)
![](https://img.xkw.com/dksih/QBM/2021/3/17/2679791044280320/2679910279626752/STEM/c755e26a7b644c91aea8b65e4917648e.png?resizew=193)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7551011cfb75b26f35b07d6617c6a18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbb2dce15f3d0fe839688575d2a8ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbb2dce15f3d0fe839688575d2a8ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7551011cfb75b26f35b07d6617c6a18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574dc284fb9e74d65cf0c79a978d65de.png)
①求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②试探究边
![](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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
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真题
【推荐3】如图1,在矩形ABCD中,AB=4,AD=3,点O是边AB上一个动点(不与点A重合),连接OD,将△OAD沿OD折叠,得到△OED;再以O为圆心,OA的长为半径作半圆,交射线AB于G,连接AE并延长交射线BC于F,连接EG,设OA=x.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/25/a8587f4e-c21c-44a8-951d-73c7c97c09c6.png?resizew=475)
(1)求证:DE是半圆O的切线;
(2)当点E落在BD上时,求x的值;
(3)当点E落在BD下方时,设△AGE与△AFB面积的比值为y,确定y与x之间的函数关系式;
(4)直接写出 :当半圆O与△BCD的边有两个交点时,x的取值范围.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/25/a8587f4e-c21c-44a8-951d-73c7c97c09c6.png?resizew=475)
(1)求证:DE是半圆O的切线;
(2)当点E落在BD上时,求x的值;
(3)当点E落在BD下方时,设△AGE与△AFB面积的比值为y,确定y与x之间的函数关系式;
(4)
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【推荐1】如图1,
的余切值为2,
,点D是线段
上的一动点(点D不与点A、B重合),以点D为顶点的正方形
的另两个顶点E、F都在射线
上,且点F在点E的右侧,联结
,并延长
,交射线
于点P.
(1)点D在运动时,下列的线段和角中,________是始终保持不变的量(填序号);
①
;②
;③
;④
;⑤
;⑥
;
(2)设正方形的边长为x,线段
的长为y,求y与x之间的函数关系式,并写出定义域;
(3)如果
与
相似,但面积不相等,求此时正方形的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04725e51b4870658f74de79403e3898f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
(1)点D在运动时,下列的线段和角中,________是始终保持不变的量(填序号);
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbaff54b14910886cfaa1a89a37a233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bbb90511e761c0aff7bc4673ab5d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b1d3ba8a6c2acb3540714e99481f8e.png)
(2)设正方形的边长为x,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501e64b04a525b7e2879d3a667a923a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5225e75e359a1aaac75c19bba1c338d9.png)
![](https://img.xkw.com/dksih/QBM/2019/10/29/2322256687865856/2322889367871488/STEM/8a70c0791071405cb1394f5bda01f63a.png?resizew=486)
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【推荐2】如图1,抛物线
交
轴于点
,抛物线的对称轴交
轴于点
,抛物线的顶点为点
,点
在抛物线上,直线
交
轴于点
.
(1)请直接写出抛物线的解析式及点
的坐标;
(2)判断
的形状,并说明理由;
(3)如图2,点
为线段
上一点,过点
作
的垂线交
于点
,交
轴于点
(点
位于点
右侧),当
时,
①请求出点
和点
的坐标;
②请直接写出线段
与
的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e31372ebc93ef965b22d01594e06abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6628d2484561aab16e1a4c02cf1df85f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/65813d1b-4ea0-463d-b248-926e6be94d70.png?resizew=409)
(1)请直接写出抛物线的解析式及点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb02779236aff6a174a29dff0b2524f0.png)
①请求出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
②请直接写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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解答题-问答题
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较难
(0.4)
真题
【推荐1】(1)如图①,在矩形
的
边上取一点
,将
沿
翻折,使点
落在
上
处,若
,求
的值;
(2)如图②,在矩形
的
边上取一点
,将四边形
沿
翻折,使点
落在
的延长线上
处,若
,求
的值;
(3)如图③,在
中,
,垂足为点
,过点
作
交
于点
,连接
,且满足
,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fe42fb1a9602d9881331f705217eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd4af2c49cfde809f4bdae31f946a4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/13/5cf27dab-3679-43a9-b554-09e4ec38421c.png?resizew=466)
(2)如图②,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490d68ff9ed3dc5dd14657b6a7a5c44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)如图③,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd409a263b86d62260a54cffdf6d3c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7a2d67c1a66e2f4f956083ce5e3a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1a1fd2fc33e89f357cef772ff6cd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fda6e9b56e45d4f63901375b8ce6781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ce60db09ea4409f6170ae2604ae4b9.png)
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解答题-问答题
|
较难
(0.4)
【推荐2】如图1,在平面直角坐标系中,抛物线
经过点
和点
.
(1)求抛物线的解析式及顶点D的坐标;
(2)点P是抛物线上A,D之间的一点.过点P作
轴于点E.
轴,交抛物线于点G,过点G作
轴于点F,当矩形
的周长最大时.求点P的横坐标;
(3)如图2,连接
,
,作
轴于点H.把
沿着射线
方向平移,点D在射线
上移动的距离为m个单位,如果平移后的三角形恰好和抛物线有且只有两个交点,请直接写出m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1aa22fa0b268077a258903bcd9547c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d71fb4d3db6c9922d3b605a6d40e529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/521d5207-aae0-4dbf-bafa-09ca7593b1d8.png?resizew=453)
(1)求抛物线的解析式及顶点D的坐标;
(2)点P是抛物线上A,D之间的一点.过点P作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae95e96ce568efee50145f8d017353df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20cb6d329bf09c53be35dd32aa3805d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4c5119c63ea86e97ad2ac7c84a423b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3f1c63921a86b0493c0c6ba5793a48.png)
(3)如图2,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/967e7d3f5d610bbb4a9859bd15fa382d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a40032e6e70341ca7139d9c97c2a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次