名校
1 . 如图,经过点
的抛物线
与
轴相交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/c78be23a-bbf4-40fb-96ce-beb9f9a2709c.png?resizew=195)
(1)求此抛物线的函数关系式和顶点
的坐标;
(2)判断
的形状,并说明理由;
(3)若点
是第四象限抛物线上的一点,是否存在一点
使以
、
、
、
为顶点的四边形面积最大?若存在,求点
的坐标及四边形的最大面积,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f783f66e31eb68062c458a0233e6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c468dc5cc34c14a188493a21019e8f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e894101c52591ac320eed1c9b452f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/c78be23a-bbf4-40fb-96ce-beb9f9a2709c.png?resizew=195)
(1)求此抛物线的函数关系式和顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
(3)若点
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
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2 . 如图,在平面直角坐标系中放置一直角三角板,其顶点为
,
,
,将此三角板绕原点
逆时针旋转
,得到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/27390e3b-5874-4526-8bdf-eb9aa8c61cc8.png?resizew=421)
(1)有一条抛物线经过点
,
,
,求该抛物线的解析式.
(2)设该抛物线的一个动点
的横坐标为
.
①当
时,求四边形
的面积
与
的函数关系式,并求出
的最大值;
②点
是直线
上的一个动点,若以
为边,点
,
,
,
为顶点的四边形是平行四边形,请求出所有符合条件的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a64ab788f5642b94ccbdc23c9db5b37.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/27390e3b-5874-4526-8bdf-eb9aa8c61cc8.png?resizew=421)
(1)有一条抛物线经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设该抛物线的一个动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb4337e61fdb8a9e216273edab4579c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25b196e03bd7521b1612a74a595903a.png)
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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3 . 如图,在平面直角坐标系中,抛物线
与
轴交于
,
两点,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/b570a019-e00d-488c-b3be-79d1470685c5.png?resizew=450)
(1)求该抛物线的函数表达式;
(2)点
是直线
上方拋物线上任意一点,过点
分别作
轴、
轴的平行线,交直线
于点
,
,求
的最大值及此时点
的坐标;
(3)在(2)中
取得最大值的条件下,将该抛物线向右平移个3个单位,点
平移后的对应点为
,
为新抛物线对称轴上任意一点,在新抛物线上确定一点
,使得以点
,
,
,
为顶点的四边形是平行四边形,直接写出所有符合条件的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415ce7008a89ffca8c3c3edbf13a935e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/b570a019-e00d-488c-b3be-79d1470685c5.png?resizew=450)
(1)求该抛物线的函数表达式;
(2)点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)在(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/a0ed1ec316bc54c37c4286c208f55667.png)
您最近一年使用:0次
2023-02-23更新
|
341次组卷
|
4卷引用:重庆市合川区2022-2023学年九年级上学期期末数学试题
重庆市合川区2022-2023学年九年级上学期期末数学试题(已下线)黄金卷03(潍坊专用)-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(已下线)(期中期末真题汇编)第22章 二次函数 (分层精练)-【题型分类精粹】2023-2024学年九年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)内蒙古自治区鄂尔多斯市东胜区东胜区第一中学2023-2024学年九年级上学期期中数学试题
4 . 综合与探究
如图,抛物线
与x轴交于
,
两点,与y轴交于点C.点
是x轴上的一个动点,过点P作直线
轴,与直线BC交于点M,与抛物线交于点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/39983a96-5a83-4dc5-9341-8caaa660dc7a.png?resizew=461)
(1)求这个抛物线的函数表达式.
(2)①若点P在线段OB上运动,求线段MN的最大值;
②若点P在x轴的正半轴上运动,在y轴上是否存在点Q,使以M,N,C,Q为顶点的四边形为菱形?若存在,请直接写出点Q的坐标;若不存在,请说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bfec4efcc9f0e656d6864daaaef55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/39983a96-5a83-4dc5-9341-8caaa660dc7a.png?resizew=461)
(1)求这个抛物线的函数表达式.
(2)①若点P在线段OB上运动,求线段MN的最大值;
②若点P在x轴的正半轴上运动,在y轴上是否存在点Q,使以M,N,C,Q为顶点的四边形为菱形?若存在,请直接写出点Q的坐标;若不存在,请说明理由.
您最近一年使用:0次
2023-01-09更新
|
312次组卷
|
5卷引用:山西省临汾市壶关县2022-2023学年九年级上学期1月期末数学试题
5 . 问题提出
(1)如图①,在
中,
,
,求
的面积.
问题解决
(2)如图②,某公园准备在圆形场地内设计一个四边形娱乐区,图中四边形
为娱乐区的示意图,其中,
是
的直径,
米,点E为直径
上一点,且
米,
是过点E的一条弦.为了给广大市民提供更大范围的娱乐区,试确定娱乐区四边形
的面积是否存在最大值?若存在,求出它的最大面积,若不存在,请说明理由.
(1)如图①,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5cbb92530893433224f0f81abcd07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
问题解决
(2)如图②,某公园准备在圆形场地内设计一个四边形娱乐区,图中四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b6b9d14dc089d3b86c858d8549adb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ae3fbac48c2555d50bbe404e54500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/b329697c-e80a-4afc-9af7-aa8e6346f922.png?resizew=335)
您最近一年使用:0次
名校
6 . 问题背景
在
中,
,点D为边
上一动点,点E为边
上一动点,沿直线
把
翻折,得到
.
问题解决
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/5ba2afb7-9da5-4bc4-9044-e0698b8a2b9a.png?resizew=478)
(1)如图1,当
与B重合时,求线段
的长;
(2)如图2,当
与边
相交于点F,且
时,连接
,
①求五边形
面积的最大值;
②连接
,则
的周长的最小值为 (直接写出答案).
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2522a6965e901bd75bb53113e0c0dfcb.png)
![](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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dbf33492e5223df78dea34a24ae015.png)
问题解决
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/5ba2afb7-9da5-4bc4-9044-e0698b8a2b9a.png?resizew=478)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968b886a9f161fdcab1e08cba8ece5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e07ec05313a6eb0f27994f432493fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
①求五边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a621d0ba529307e9df8d2a467af1083.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037b1a3ec2e37bbcb05d0a467efb511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db121e30b06b467f5d270a1c7d91860e.png)
您最近一年使用:0次
2022九年级·江苏·专题练习
7 . 如图,在平面直角坐标系中,O为坐标原点,二次函数
图像的顶点是点A,对称轴为直线l,图像与y轴交于点C,点D在l右侧的函数图像上,点B在
延长线上,且四边形
是平行四边形.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/407cfa80-f493-4c59-a2a6-40a2c1e6e98d.png?resizew=428)
(1)如图2,若
轴.
①求证:
;
②若
是矩形,求二次函数的解析式;
(2)当
时,
能否成为正方形,请通过计算说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ea9dfe9dc3ad60b774e1ccf93e3f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341d9ce62bb00c654b206b35f329740b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/407cfa80-f493-4c59-a2a6-40a2c1e6e98d.png?resizew=428)
(1)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db365bec556a5d4386648db1e07a29d.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb34260595d7c8770f75874a6aa4927.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc02702117127a7f1ebd003d1cda173.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced4ff871e6a470dde3797961697a0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc02702117127a7f1ebd003d1cda173.png)
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名校
8 . 如图1,抛物线
与x轴交于点A,B,与y轴交于点C,点B坐标为
,点D为线段OB上一点,点E为抛物线上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/23ab98d4-e897-4a80-ae13-2e01bde50f00.png?resizew=481)
(1)求b的值;
(2)点D坐标为(3,0),点E在第一象限的抛物线上,设
的面积为S,求S的最大值;
(3)如图2,点D坐标为(4,0),是否存在点E,使
,若存在,请求出点E坐标,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcc62e5df574a96c4a763c4e88bdde2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb13bbc5335efc427f9c619a51dae3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/23ab98d4-e897-4a80-ae13-2e01bde50f00.png?resizew=481)
(1)求b的值;
(2)点D坐标为(3,0),点E在第一象限的抛物线上,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b265d121f9ebc13671a5719604476a.png)
(3)如图2,点D坐标为(4,0),是否存在点E,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75c97b4398d02ce3ea333a5d721eac1.png)
您最近一年使用:0次
2022-12-30更新
|
274次组卷
|
2卷引用:辽宁省大连市中山区2022-2023学年九年级上学期期末数学试题
名校
9 . 如图,在矩形
中,对角线
,
相交于点
,
,
,点
是
上一点,且
.点
由点
出发,沿
方向向点
匀速运动,速度为
;
交
于
,交
于
,连接
,
,设运动时间为
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/f8974b4b-829e-4642-b4f9-acebcddd4ca3.png?resizew=154)
(1)当
为何值时,
?
(2)设四边形
的面积为
,求
与
之间的函数关系式;
(3)是否存在某一时刻
,使得点
在
的角平分线上?若存在,求出此刻
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35ed92397da56c7afbd6967597a9611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9547f6b5c7c54d216ecea72becb7d373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb46fa3aecd2a8178404b322094f601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2952c1bb3373bd9cb2b8c59c8ec55f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0277ef5d5f52b1c72c16d67593d8569e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/f8974b4b-829e-4642-b4f9-acebcddd4ca3.png?resizew=154)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd7e0e172290aa753c445fe4becf1a3.png)
(2)设四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35511598eed3e900a3d2df495af0f873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacd892f03da01942140679667792250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)是否存在某一时刻
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a052eda666e5cdad530bf6411f72a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
10 . 如图,在平面直角坐标系中,点
为坐标原点,直线
交
轴于点
,
轴于点
,抛物线
与
轴交于
,
两点,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/67f0df83-cf9b-42eb-a2b2-a203c68d7931.png?resizew=174)
(1)求抛物线的解析式;
(2)
在第三象限抛物线上,
点横坐标为
,连接
、
,
的面积为
,求
关于
的函数关系式(不要求写自变量
的取值范围);
(3)在(2)的条件下,
绕点
逆时针旋转,与线段
相交于点
,且
,过点
作
交
于
,
轴于点
,连接
,若
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974cf6ed500e27d2a9928db300645f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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://img.xkw.com/dksih/QBM/editorImg/2022/11/13/67f0df83-cf9b-42eb-a2b2-a203c68d7931.png?resizew=174)
(1)求抛物线的解析式;
(2)
![](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/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在(2)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad2af604090d03934e0c0c00ff64c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7459863f058993e17b7dcf902053eccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2475280f33550ffe75bb5c8a7b120e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次
2022-11-09更新
|
208次组卷
|
2卷引用:黑龙江省哈尔滨市南岗区第四十七中学2022-2023学年九年级上学期10月份阶段性验收数学(五四制)试卷