1 . 为响应扬州市“创建全国文明城市”号召,某单位不断美化环境,拟在一块矩形空地上修建绿色植物园,其中一边用墙,可利用的墙长不超过
,另外三边由
长的栅栏围成,设矩形
空地中,垂直于墙的边
,面积为
(如图).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/c8c2c0e2-32f1-4a11-b03d-9ce021110918.png?resizew=112)
(1)求
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?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1e0bd4fe8afb14b572852121cef83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03c367201c385fcf9bdbf09d22b9e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ac400e3f5ba8b945bbef83db8611b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a20728e9a9e3018723f2a86f24f332.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/c8c2c0e2-32f1-4a11-b03d-9ce021110918.png?resizew=112)
(1)求
![](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)
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2 . 如图,四边形
中的两条对角线
,
互相垂直,
,当
长为______ 时,四边形
的面积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.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/7712aaf7c0fa135847df6e3a1d547b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/889efe5d-6081-4e5a-9e46-d2002738fbc1.png?resizew=139)
您最近一年使用:0次
2024-01-02更新
|
140次组卷
|
3卷引用:内蒙古自治区巴彦淖尔市杭锦后旗杭锦后旗陕坝中学2023-2024学年九年级上学期12月月考数学试题
3 . 如图,直线
与x轴、y轴分别交于点A,B,抛物线
经过点A,B,并与x轴交于另一点C,其顶点为P.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/ea244ee8-e7b3-42a0-9df4-0dd3e776a829.png?resizew=136)
(1)求出a,k的值;
(2)求
的面积;
(3)在抛物线上是否存在点M,使
,如果存在,求出点M坐标;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de869ae6b6dc5b79fcae3de540b30bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8aa5c9665421725fd6af413797729f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/ea244ee8-e7b3-42a0-9df4-0dd3e776a829.png?resizew=136)
(1)求出a,k的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
(3)在抛物线上是否存在点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5415f59f144361046cd1648ad3b1328.png)
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4 . 如图所示,在一矩形空地
内建筑一个小的矩形花坛
,要求
在
上,
,
分别在
,
上,已知
米,
米,设
(米)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/e1b480f1-7acd-4843-989b-bad892f4859f.png?resizew=160)
(1)设
,求
与
之间的函数表达式;
(2)当
,
的长度分别是多少时,花坛
的面积最大?并求出最大面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdc2c9270659232c27a11a75feae638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a36acbc77a4a3d1abb9b664108aed80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9985d220dab659dc780a5b652f7d2676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ed39deec38230fe7bcc645722626d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/e1b480f1-7acd-4843-989b-bad892f4859f.png?resizew=160)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec629ef9ca40bd5e964e30b3d2f3e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1165830b314a0dab65ea267e82bd3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4cb4069a2e1e90d1a9c4979ad09ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdc2c9270659232c27a11a75feae638.png)
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5 . 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)
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6 . 如图菱形
的边长为
,,
,动点P,Q同时从点A出发,都以
的速度分别沿
和
的路经向点C运动,设运动时间为x(单位:s),四边形
的面积为y(单位:
),则y与x
之间的函数关系可用图象表示为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/115684d5-ba58-401b-a9f9-18ef9bef1ae8.jpg?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bf2ed4e49655ce765ba6ffbb6c7d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087da5c11909dab613378fee8d471fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f60ce11afb2f34f259546fa4eaa9801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e31351d7b971bda5c97c662fc71103a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865d6b1dcc625c2cc39336fcd900e917.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/115684d5-ba58-401b-a9f9-18ef9bef1ae8.jpg?resizew=145)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-01更新
|
288次组卷
|
2卷引用:江苏省南通市崇川区启秀中学2023-2024学年九年级上学期12月月考数学试题
7 . 根据以下素材,探究完成任务
设计路的宽度 | ||
材料1 | 为培养学生劳动实践能力,某研学基地计划在一块形状为三角形的土地上开辟出一块矩形土地(如图所示)供种菜使用,其中![]() ![]() ![]() ![]() ![]() | |
材料2 | 为了方便学生使用,计划在开辟出来的长方形土地上建造三条如图所示的宽均为a(![]() | |
问题解决 | ||
任务1 | 若所开辟的土地为正方形,求该正方形![]() | |
任务2 | 若所开辟的土地为矩形,求矩形![]() | |
任务3 | 当![]() |
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8 . 为加强学生的素质教育,让学生看到自己的劳动成果,兴华中学围建了一个如图所示的矩形苗圃园让学生种菜.苗圃园其中一边靠墙,另外三边用长为
的篱笆围成,已知墙长为
,设这个苗圃园垂直于墙的一边的长为
,这个苗圃园的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/0a3b4804-f0b4-457e-a5c0-9dd70a0f83e4.png?resizew=185)
(1)求
与
之间的函数关系式;(直接写出
的取值范围)
(2)当矩形场地的面积为
时,求垂直于墙的一边的长;
(3)当
取何值时这个苗圃园的面积最大,最大面积为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa95874b57afccaf193c257d437e5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1611d15c7e1e4ab4a4a61537b3989d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa2d65026770c5505f8adeb450e43b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/0a3b4804-f0b4-457e-a5c0-9dd70a0f83e4.png?resizew=185)
(1)求
![](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)
(2)当矩形场地的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385fed7903154eccff27278fbf22943e.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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9 . 如图,矩形
的四个顶点都在
的边上,
于点D,交
于点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/e6a94be4-4411-47dd-b456-c6adc16d50ad.png?resizew=205)
(1)求证:
;
(2)若
,
,设
的长度为x,矩形
的面积为y,则矩形
的面积是否有最大值?如果有,请求出矩形
面积的最大值:如果没有,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/e6a94be4-4411-47dd-b456-c6adc16d50ad.png?resizew=205)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a795fcbf55b39b09e0b3f77f6df59f93.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2176dac04a8b410e319342fb8e895b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
您最近一年使用:0次
名校
10 . 农民张大伯在新年伊始计划借助自家一段长25米长的旧围墙建一块矩形苗圃,他的设想是:如图所示,用长39米的篱笆在旧墙一侧围成一个矩形
苗圃用于种植牡丹,其中
段靠墙不需要篱笆,
与墙体
平行,为了方便出入,在
段设一个宽1米的出入口,设
的长为x米,矩形苗圃的面积为y平方米.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/ff4a3fa0-5a51-4178-979e-4f6c694612b9.png?resizew=125)
(1)求y关于x的函数解析式;
(2)若要求矩形苗圃的面积不低于168 平方米,求x的取值范围;
(3)若栽种的牡丹苗每一行、每一列均平行于矩形
的边,且每株牡丹苗与周围的篱笆(含围墙)间的距离不少于1米,每两株牡丹苗之间的距离不少于
米,请你帮助张大伯设计
的长,使得这个苗圃可以种植最多的牡丹苗,并求最多可以种植牡丹苗的株数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/ff4a3fa0-5a51-4178-979e-4f6c694612b9.png?resizew=125)
(1)求y关于x的函数解析式;
(2)若要求矩形苗圃的面积不低于168 平方米,求x的取值范围;
(3)若栽种的牡丹苗每一行、每一列均平行于矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec818fc0754296163206e1e8870f9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次