名校
1 . 某小区要用篱笆围成一个直角三角形花坛.花坛的斜边利用足够长的墙,两条直角边所用的篱笆长度之和恰好为21米.围成的花坛是如图所示的直角
,其中
,且
.设
边的长为
米,直角
的面积为
平方米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/b0a330a1-2008-41a0-9dda-7f451302b090.png?resizew=222)
(1)用含
的式子表示
;
(2)根据小区的规划要求,所修建的直角三角形花坛面积是54平方米,问直角三角形的两条直角边的长各为多少米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba9fcc3b010fd1f911c957e0c292bf49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093db5b63dfd1ac4c84692a168f7ace0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/b0a330a1-2008-41a0-9dda-7f451302b090.png?resizew=222)
(1)用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)根据小区的规划要求,所修建的直角三角形花坛面积是54平方米,问直角三角形的两条直角边的长各为多少米?
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真题
2 . 某建筑物的窗户如图所示,上半部分
是等腰三角形,
,
,点
、
、
分别是边
、
、
的中点;下半部分四边形
是矩形,
,制造窗户框的材料总长为16米(图中所有黑线的长度和),设
米,
米.
与
之间的函数关系式,并求出自变量
的取值范围;
(2)当
为多少时,窗户透过的光线最多(窗户的面积最大),并计算窗户的最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6f90a09072101367cb8a1a7bf9fcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555f245a3991c323565d0211ad1f405a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bc55510792f8bd30e1c0686609fe3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e83115ca0edf2fedb181bb960f3efde.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)
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2023-07-24更新
|
900次组卷
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7卷引用:2023年黑龙江省大庆市中考数学真题
2023年黑龙江省大庆市中考数学真题 (已下线)专题22.34 实际问题与二次函数(直通中考)(培优练)-2023-2024学年九年级数学上册基础知识专项突破讲与练(人教版)(已下线)专题05 二次函数的实际应用(5类经典题型+优选提升)-【好题汇编】备战2023-2024学年九年级数学上学期期中真题分类汇编(人教版)(已下线)22.2+二次函数与实际问题(题型精讲精练)1(原卷版)(已下线)专题15 特殊三角形(考点回归+练透中考13类核心重点考向)-备战2024年中考数学真题题源解密(全国通用)(已下线)专题09 二次函数的图像与性质(二)(五大热点题型归纳)-2024年中考数学二轮热点题型归纳与变式演练(云南专用)2024年安徽省黄山市中考二模数学试题
真题
名校
3 . 如图,抛物线
与
轴交于
两点,与
轴交于点
.抛物线的对称轴
与经过点
的直线
交于点
,与
轴交于点
.
及抛物线的表达式;
(2)在抛物线上是否存在点
,使得
是以
为直角边的直角三角形?若存在,求出所有点
的坐标;若不存在,请说明理由;
(3)以点
为圆心,画半径为2的圆,点
为
上一个动点,请求出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c977d0f39570f4f89be26efe20cc056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc236aba2122784d9a837803d7de366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231896d2386c924306fce5ccf9f9e8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)在抛物线上是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f9fba8a4098c1a0515286eb8d616dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c90eb575f3b707a5d5a420c75c6f27.png)
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2023-06-20更新
|
2102次组卷
|
13卷引用:黑龙江省大庆市庆新中学2023-2024学年九年级上学期期末数学试题
黑龙江省大庆市庆新中学2023-2024学年九年级上学期期末数学试题2024年黑龙江省大庆市祥阁学校中考一模数学试题2023年山东省烟台市中考数学真题(已下线)专题11二次函数解答压轴题(精选50道)-学易金卷:三年(2021-2023)中考数学真题分项汇编【山东专用】山东省淄博市周村区周村区第二中学(五四制)2023-2024学年九年级上学期期中数学试题四川省德阳市旌阳区2023-2024学年九年级上学期期末数学试题(已下线)第8讲 二次函数与几何图形2024年山东省青岛市中考数学模拟预测题2024年广东省惠州市惠阳区新世纪实验学校一模数学试题2024年山东省济南市商河县清华园学校中考一模数学模拟试题(已下线)数学(陕西卷)-学易金卷:2024年中考考前押题密卷甘肃省张掖市第一中学2023-2024学年九年级下学期期中数学试题2024年广东省东莞市校级联考中考模拟数学试题
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
|
600次组卷
|
4卷引用:2024年黑龙江省大庆市中考三模数学试题
2024年黑龙江省大庆市中考三模数学试题2023年湖北省武汉市江汉区中考三模数学试题(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)
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)
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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
7 . 如图,在平面直角坐标系中,点
为坐标原点,抛物线
与
轴的负半轴交于点
,与
的正半轴交于点
,与y轴正半轴交于点
,
.
(2)点
是第四象限内抛物线上一点,连接
交
轴于点
,过
作
轴交抛物线于点
,连接
,设四边形
的面积为
,点
的横坐标的
,求
与
的函数解析式;
(3)在(2)的条件下,过
作
轴交
于点
,连接
交
于点
,点
是
上一点,连接
,当
,
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e71461c5134339b5b54a80e588640f.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6d65a514fe4eef4fc84059b27a2cb1.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f425c7db35f8f3b7cac4b534afe2d4ad.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/c5d803de8455b9b10eaf9c9d0538835a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在(2)的条件下,过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fa698ea2662cbff104216ec47f7251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d845e7060a6f138ecd9388bb83ee58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7a750e1d4fe4800e2d4323131082fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171af4ce8b4754f40c607df9c6286ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2023-10-30更新
|
70次组卷
|
2卷引用:2022年黑龙江省哈尔滨市部分学校中考模拟数学试题
8 . 如图,抛物线
,交
轴于点
(A左B右),交
轴于点
,连接
,且
.
(1)求抛物线的解析式;
(2)点
为第三象限拋物线上一点,连接
交
轴于点
,设点
的横坐标为
,
的面积为
,求
与
的函数关系式(不要求写出自变量
的取值范围);
(3)在(2)的条件下,过
作
于点
,连接
,若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d8de071a9c22c96a59b172d76c127e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.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/81581d8a25479f4115d91815368e8a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9052aae74857b2e08abf92db603abccb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/6a802b1a-dfbd-4ce4-9dd7-d177884d757a.png?resizew=561)
(1)求抛物线的解析式;
(2)点
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a9ec45721f7b4d1c99917ac0d970f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)在(2)的条件下,过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e9f6c3d2af267fa107b8eceafb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85e359dd0247ef957a03a5e6d49aea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-05-27更新
|
73次组卷
|
3卷引用:2023年黑龙江省哈尔滨市松北区初中升学调研测试(二)数学试题
名校
9 . 如图,在平面直角坐标系中,直线
,分别交x轴、y轴于点A、B.
(1)求
的值;
(2)点C在
的延长线上,点D在x轴的正半轴上,连接
,
,若
的面积为S,点C的横坐标为t,求S与t的函数关系式;
(3)在(2)的条件下,E是
的中点,过点E作
的垂线交y轴于点F,求F的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c682405d9bcca65e257ac37ba07d6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/11/a69b6432-23e0-44a4-ba36-8111d4a38bc5.png?resizew=456)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353902f5326218049bf4835d9a9b7ba3.png)
(2)点C在
![](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/8e12457d5b7d0f2611f4cdc173ceb784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
(3)在(2)的条件下,E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
10 . 如图,用
长的篱笆围成一个一面靠墙的矩形场地(墙的长度足够),则场地的最大面积为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba007666deb89951641bd1e24bc174a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/f05be276-d36a-4eaa-970c-9b58e3900e0f.png?resizew=318)
您最近一年使用:0次
2023-09-30更新
|
84次组卷
|
2卷引用:黑龙江省齐齐哈尔市龙江县育英学校2022-2023学年九年级上学期期中数学试题