1 . 如图,正方形
的边长为
,点
在边
上运动且不与点
、
重合,
,点
在射线
上,且
,
与
相交于点
,连接
、
,
.则下列结论正确的是____________ .(填写序号)
①
;
②
的周长为
;
③
的面积的最大值是
;
④当
时,
是线段
的中点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/6861199a0ba13fc6bd649f3ff60ef597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22569e5010fe900eaefc4a025c774b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0d5c44ccbfd87f8016a00b32948f71.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1bf8e099f556e942039390ba8c4632f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525ed2b46dd536f8d3e9e32be885b0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f4e9f8e769b0c31b45ea4be46f7651.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b5db86cd82e7f4eed081ed03834439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/5/cfb45e47-3957-4deb-a8ad-90aedbf0cfb2.png?resizew=191)
您最近一年使用:0次
2 . 如图所示,要建一个长方形的养鸡场,养鸡场的一边靠墙(墙长
),如果用
长的篱笆围成中间有一道篱笆的养鸡场,设养鸡场的长为
,当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e4d2bcf4cdaab2a07ddf3640bb7ffa.png)
______
时,养鸡场的面积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d838fe618504daed236278d34af505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7495fdb2974e6b08e7125a1ee020f339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d184f66d90d46f4393f24cc2218091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e4d2bcf4cdaab2a07ddf3640bb7ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5022abc6afd4deff13845419fa38312e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/4f30e265-d78c-4f9a-80fd-38307470c976.png?resizew=215)
您最近一年使用:0次
3 . 如图所示,一个农户要建一个矩形猪舍,猪舍的一边利用长为
的房墙,另外三边用
长的建筑材料围成,为了方便进出,在垂直于房墙的一边留一个
宽的门.
(1)所围成矩形猪舍平行于墙的一边长为多少时,猪舍面积为
?
(2)为做好猪舍的卫生防疫,现需要对围成的矩形进行硬底化,且已知硬底化的造价为50元/平方米,请你帮助农户计算矩形猪舍硬底化需要的最大费用.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e978c77cb0d7eff794447241e9829867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146ea9ed5176797da555a70bbe9602c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f328ba89c0a92a4447788b65571f7aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/2fc8b56d-87ef-499a-8b82-e8f19b70ee8a.png?resizew=172)
(1)所围成矩形猪舍平行于墙的一边长为多少时,猪舍面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a2ff3b4e327d32d7505fbb40d47669.png)
(2)为做好猪舍的卫生防疫,现需要对围成的矩形进行硬底化,且已知硬底化的造价为50元/平方米,请你帮助农户计算矩形猪舍硬底化需要的最大费用.
您最近一年使用:0次
4 . 如图,抛物线
与
轴的交点分别为
和
,与
轴交于点
,连接
、
,点
是线段
上,不与点
、
重合的一个动点,过点
作
轴,交抛物线于点
,交
于点
,其对称轴与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/7dce9882-7343-482f-8eda-d001c9423b7b.png?resizew=169)
(1)求抛物线的表达式;
(2)在点
的运动过程中,能否使线段
?若能,请求出点
的坐标,若不能,请说明理由;
(3)在抛物线的对称轴上是否存在点
,使
是等腰三角形?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/6c119eba6bc8434123efc698b0d5930b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c33700c3358cbbd8db376f9f0613b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb898663f98b8400a897913b4d3102.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/60ef95894ceebaf236170e8832dcf7e3.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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4914b846a985658a528ab9d70ccc7c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/7dce9882-7343-482f-8eda-d001c9423b7b.png?resizew=169)
(1)求抛物线的表达式;
(2)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0487ebca22d4aa1233073f81fd70a424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)在抛物线的对称轴上是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e61dcc9e44da26134757b1442d2ab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
5 . 如图∶有一农户要建一个矩形鸡舍,鸡舍的一边利用长为
米的墙,另外三边用
米长的篱笆围成,为方便进出,在垂直于墙的边
上留一个1米宽的门.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/68d06384-ee04-4fec-9a10-69114e60c832.png?resizew=150)
(1)矩形的边
与
长度分别为多少时,鸡舍面积为
平方米?
(2)若住房墙的长度足够长,问鸡舍面积能否达到
平方米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7f959148f8da15d2a4a4ceb30745df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436dde5d8ac0232d980cc64d8c4525c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/68d06384-ee04-4fec-9a10-69114e60c832.png?resizew=150)
(1)矩形的边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74fff35cf1ffeef5fa1e7ad51d849ef0.png)
(2)若住房墙的长度足够长,问鸡舍面积能否达到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b7224a161bdc3f12cf8546017550f0.png)
您最近一年使用:0次
6 . 如图,抛物线
与
轴交于点
、
,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/c165c024-bc5f-4b17-a30f-b5560ae0cfac.png?resizew=140)
(1)求抛物线的表达式.
(2)已知点
为
轴上一点,点
关于直线
的对称点为
.
①当点
刚好落在第二象限的抛物线上时,求出点
的坐标.
②点
在抛物线上(点
不与点
、点
重合),连接
,
,
,是否存在点
,使
为等腰直角三角形?若存在,请求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c33700c3358cbbd8db376f9f0613b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb898663f98b8400a897913b4d3102.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/2024/1/5/c165c024-bc5f-4b17-a30f-b5560ae0cfac.png?resizew=140)
(1)求抛物线的表达式.
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
②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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79039b211d151710a15fc9dda11d6225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba2d49042c812a164167a8e42fde290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-01-05更新
|
133次组卷
|
2卷引用:2024年山东省济南市长清区九年级中考数学模拟预测题
7 . 如图,在
中,
,
于点D,
.点M从点A出发,沿
方向匀速运动,速度为
;同时直线PQ由点B出发,沿BA的方向匀速运动,速度为
,运动过程中始终保持
.直线
交
于点
,交
于点
,交
于点
,连接
.设运动时间为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/ad8be6b6-9f43-4818-9feb-5367a19a29f2.png?resizew=220)
(1)当t为何值时,四边形
是平行四边形?
(2)设四边形
的面积为
,求y与t之间的函数关系式:
(3)是否存在某一时刻t,使
若存在,求出此时t的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011586f46c6f0c37d0f2e85fb69bb4c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1337ce85d29edabcc2fadb9a9cc31ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b0a8ce98e195c4fa22af9b71defc28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806a73fd743e17b937e5f58ff6a6f51b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/ad8be6b6-9f43-4818-9feb-5367a19a29f2.png?resizew=220)
(1)当t为何值时,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459df8ded6fc55d4536d29c898396c95.png)
(2)设四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459df8ded6fc55d4536d29c898396c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d740004cfdade4c185f722dadc27e15.png)
(3)是否存在某一时刻t,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d985139806267f82a99b676ddf385ac9.png)
您最近一年使用:0次
8 . 用总长为80米的篱笆围成矩形场地,矩形面积
随矩形一边长
的变化而变化,当
是________ 米时,场地的面积
最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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
2023-12-31更新
|
52次组卷
|
2卷引用:山东省济宁市特殊教育学校2023-2024学年九年级上学期期末数学试题
名校
9 . 如图,在平面直角坐标系
中,
为
轴上的点,
为抛物线
上的两点(点
在点
的右侧),且四边形
是正方形,则正方形
的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f21b99912d94071d004d76361b0439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3236d825b994ee9c28e5d5479a57b8ed.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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10 . 某居民小区要在一块一边靠墙(墙长20米)的空地上修建一个矩形花园
,花园的一边靠墙,另三边用总长40米的栅栏围成(如图所示).若设花园的
边长为x米,花园的面积为y平方米.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/1f6afeef-3f0d-47fb-b1af-cea641961bd3.png?resizew=151)
(1)求y与x之间的函数关系式,并写出自变量x的取值范围;
(2)当x是多少时,矩形场地面积y最大?最大面积是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/1f6afeef-3f0d-47fb-b1af-cea641961bd3.png?resizew=151)
(1)求y与x之间的函数关系式,并写出自变量x的取值范围;
(2)当x是多少时,矩形场地面积y最大?最大面积是多少?
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2023-12-13更新
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88次组卷
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2卷引用:山东省菏泽市东明县第二初级中学2023-2024学年九年级上学期第三次月考数学试题