真题
1 . 已知
是抛物
(b为常数)上的两点,当
时,总有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
(1)求b的值;
(2)将抛物线
平移后得到抛物线
.
探究下列问题:
①若抛物线
与抛物线
有一个交点,求m的取值范围;
②设抛物线
与x轴交于A,B两点,与y轴交于点C,抛物线
的顶点为点E,
外接圆的圆心为点F,如果对抛物线
上的任意一点P,在抛物线
上总存在一点Q,使得点P、Q的纵坐标相等.求
长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6037359d2727b05ee33db9e2c36226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316afd3d39cbfbf483c678f9c1bbfb81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2e41c64ac5508a9ba27b697122d6d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
(1)求b的值;
(2)将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54451419e28a1130c1c5c20fd6cc166d.png)
探究下列问题:
①若抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
②设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5bfa05232c26797f61d439b6d42ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
2 . 某班在进行正方形纸片折叠探究相关数学问题的学习活动.将边长为
的正方形纸片
沿
折叠(折痕
分别与
交于点
),使点
落在
边上的点
处,点
的对应点为点
,
与
交于点
,连接
与
交于点
.如1图,当点
恰为
的中点时,甲、乙、丙三名同学各得到如下一个正确结论(或结果):
甲:
的边
__________
;
乙:
的周长为__________
;
丙:
.
(1)填充甲、乙两名同学所得结果中的数据;
(2)如题2图,当点
在
边上除点
外的任何一处时:
①丙同学的结论还成立吗?若成立,请给出证明过程,若不成立,请说明理由;
②试问乙同学的结果是否会发生变化?请证明你的结论;
③经观察,发现四边形
的面积随
点位置变化而变化,若
的长为
,四边形
的面积为
,问当
为何值时,
最大?最大值是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19daa2b38e3a52bd7096d235c843110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbbd6f7219deca374f79d30ceedf3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/19/87ab3dc2-db5a-4302-948b-d29e70a4748f.jpg?resizew=383)
甲:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fa7dd60b071d132afbfdaf170c1020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29de255df98afcb0f377f6a06a979803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
乙:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec71f16aa557d420d6286b7747b2cb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
丙:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f1aadf4291d961038e8db73a1b4098.png)
(1)填充甲、乙两名同学所得结果中的数据;
(2)如题2图,当点
![](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/e0520e9675bc1b416e8b8f01eb69fd13.png)
①丙同学的结论还成立吗?若成立,请给出证明过程,若不成立,请说明理由;
②试问乙同学的结果是否会发生变化?请证明你的结论;
③经观察,发现四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6480f384476190883f06c0289c7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3160fce05b551569b8c7b5de6dd8b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6480f384476190883f06c0289c7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ecfda698212594a342565257dc5508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
名校
3 . 植物园有一块足够大的空地,其中有一堵长为6米的墙,现准备用20米的篱笆围两间矩形花圃,中间用篱笆隔开.小俊设计了如图甲和乙的两种方案:方案甲中
的长不超过墙长;方案乙中
的长大于墙长.
的长为xm,矩形
的面积为ym2.
①求y与x之间的函数关系式.
②求矩形
的面积y(m2)的最大值.
(2)甲、乙哪种方案能使围成的矩形花圃的面积最大,最大是多少?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①求y与x之间的函数关系式.
②求矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)甲、乙哪种方案能使围成的矩形花圃的面积最大,最大是多少?请说明理由.
您最近一年使用:0次
2023-06-15更新
|
293次组卷
|
4卷引用:专题11 关于二次函数综合题(针对第22、23题)(真题5题模拟60题) -学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(安徽专用)
(已下线)专题11 关于二次函数综合题(针对第22、23题)(真题5题模拟60题) -学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(安徽专用)(已下线)第04讲 二次函数的实际应用与综合-【帮课堂】2023-2024学年九年级数学上册同步学与练(人教版)(已下线)热点04 二次函数(4大考向+重难通关练+培优争分练)-2024年中考数学【热点·重点·难点】专练(安徽专用)2023年安徽省合肥市寿春中学中考三模数学试题
4 . 某家禽养殖场,用总长为
的围栏靠墙(墙长为
)围成如图所示的三块矩形区域,矩形
与矩形
面积相等,矩形
面积等于矩形
面积的二分之一,设
长为
,矩形区域
的面积为
.
与
之间的函数关系式,并写出自变量
的取值范围;
(2)当
为何值时,
有最大值?最大值是多少?
(3)现需要在矩形
和矩形
区域分别安装不同种类的养殖设备,单价分别为40元/平方米和20元/平方米,若要使安装成本不超过30000元,请直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f256afee1098dac22f423b19b43c89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c612abc4b5bcb54b992cd729ec0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1306992ecf24ed5418123dda57b2e635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8208af2adc35cc720c0496c83d74b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1306992ecf24ed5418123dda57b2e635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec07464a1b5bc7a2cc338b1a13e0f4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5e6560863ee663a60dc7932acb5cd3.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/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)现需要在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1306992ecf24ed5418123dda57b2e635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec07464a1b5bc7a2cc338b1a13e0f4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2023-06-13更新
|
598次组卷
|
4卷引用:第22单元03巩固练
(已下线)第22单元03巩固练(已下线)第04讲 二次函数的实际应用与综合-【帮课堂】2023-2024学年九年级数学上册同步学与练(人教版)2023年湖北省武汉市江汉区中考三模数学试题2024年黑龙江省大庆市中考三模数学试题
5 . 新定义:我们把抛物线
(其中
与抛物线
称为“关联抛物线”,例如,抛物线
的“关联抛物线”为
已知抛物线
:
的“关联抛物线”为
,
与y轴交于点E.
(1)若点E的坐标为
,求
的解析式;
(2)设
的顶点为F,若△OEF是以OF为底的等腰三角形,求点E的坐标;
(3)过x轴上一点P,作x轴的垂线分别交抛物线
,
,于点M,N.
①当MN=6时,求点P的坐标;
②当
时,
的最大值与最小值的差为2a,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696ffadff4af3f364f57361d73cc5efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79babf6d73d82cabacfd1ad1af3d7897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac549d217bdf29c1e0d01318354d7f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fde7e4992f93a219aca8676faaa099d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)若点E的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)过x轴上一点P,作x轴的垂线分别交抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
①当MN=6时,求点P的坐标;
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d6da779fb100177c6a14fb47aa8ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
6 . 综合与探究
如图,已知直线
与x轴,y轴交于B,A两点,抛物线
经过点A,B,点P为线段
上一个动点,过点P作垂直于x轴的直线交抛物线于点N,交直线
于点M,设点P的横坐标为t.
(1)求抛物线解析式;
(2)当
,t的值为___________;
(3)若点N到直线
的距离为d,求d的最大值;
(4)在y轴上是否存在点Q,使
是以
为腰的等腰直角三角形?若存在,请直接写出点Q的坐标;若不存在,请说明理由.
如图,已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9118cc77fc0a045337745890e50cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/7d6266e0-103d-463e-997f-e3139d1fd730.png?resizew=444)
(1)求抛物线解析式;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff3adba01bf17140e9b2f532a416bb4.png)
(3)若点N到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(4)在y轴上是否存在点Q,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5686478d868d87e7253ea56a6e3eace6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07377d977ef6a8f518b3004564544e5b.png)
您最近一年使用:0次
22-23九年级·上海·假期作业
7 . 矩形
中,
,线段
,在
上取一点
,分别以
、
为一边作矩形
、矩形
,使矩形
与矩形
相似,且点
与点A、点
与点
,点
与点
,点
与点
分别是对应顶点,令
.求出矩形
的面积S与
的函数关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e4a162f12d12a082b8d8fdd1aeab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08668b77628265eaa98a3cee1338dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515f44f5eb95547bb9dcfddd9f292ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb54c51338a3eaa4078b6c20124264e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb54c51338a3eaa4078b6c20124264e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0409dcc992e45d68b10278f941b0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515f44f5eb95547bb9dcfddd9f292ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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8 . 综合与探究
如图,抛物线
与x轴交于
和
两点,与y轴交于点C,连接AC,BC.
(1)求抛物线的函数表达式;
(2)设点D在第一象限,且
,求点D的坐标;
(3)点A绕抛物线的对称轴
上一点P顺时针旋转90°恰好与点C重合,将
沿x轴平移得到
,点A,C,P的对应点分别为点
,
,
.在抛物线上是否存在点E,使得以
,
,
,E为顶点的四边形是平行四边形?若存在,直接写出点E的坐标;若不存在,请说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ceba6b11658f2cc227b1f550ba25c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/764f00ce-5754-45b2-85e6-67e5991c5b59.png?resizew=223)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/85865e2e-9e46-44f3-94f8-2715f0c7c7f6.png?resizew=221)
(1)求抛物线的函数表达式;
(2)设点D在第一象限,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd163f68d8f70cba6189b843563e99bb.png)
(3)点A绕抛物线的对称轴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83741d190aae36bdb8e3d2965b4dc6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
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9 . 如图,在平面直角坐标系
中,抛物线
与x轴相交于不同的两点A、B,且该抛物线的顶点E在矩形
的边
上,
.
(1)若点A坐标为
.
①求该抛物线的关系式:
②若点
,
都在此抛物线上,且
,
.试比较
与
大小,并说明理由;
(2)求边
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/4/b7f5389a-9fbb-41f1-88c2-13ca0ada5439.png?resizew=183)
(1)若点A坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
①求该抛物线的关系式:
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1b2bf0143b4710a39f2d40a7a5f89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9373d9d6a8cc0074c8a119204f411de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47a42df94a40939305b65737b8f2385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9f83ee3a2cc09977c794740efd96ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
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2023-06-03更新
|
353次组卷
|
4卷引用:专题11 关于二次函数综合题(针对第22、23题)(真题5题模拟60题) -学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(安徽专用)
(已下线)专题11 关于二次函数综合题(针对第22、23题)(真题5题模拟60题) -学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(安徽专用)2023年安徽省合肥市蜀山区中考三模数学试题2023年安徽省合肥市五十中学中考三模数学试题2023年安徽省合肥市中考三模数学试题
10 . 如图,利用一个直角墙角修建一个
的四边形储料场
,其中
.若新建墙
与
总长为
,则该储料场
的最大面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe2f6543e06a25493855fbbc648be6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e4e1cf88cd39a97137e84721894925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e459e24a3c880c0aaa155e56a8dde9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e978c77cb0d7eff794447241e9829867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/4/a0d8df66-48c7-4cb9-a4f0-f6148279309f.png?resizew=166)
A.![]() | B.![]() | C.![]() | D.![]() |
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