1 . 如图在平面直角坐标系中,抛物线
与直线
交于点
,
.
(1)求该抛物线的函数表达式;
(2)点
是直线
下方地物线上的一动点,过点
作
轴的平行线交
于点
,过点
作
轴的平行线交
轴于点
,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,将该抛物线沿水平方向向左平移5个单位.点
为点
的对应点,平移后的抛物线与
轴交于点
,
为平移后的抛物线的对称轴上一点,在平移后的抛物线上确定一点
,使得以点
为顶点的四边形是平行四边形,写出所有符合条件的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c468dc5cc34c14a188493a21019e8f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0696be1d4b3531a7d02e2b4172783736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7291b3d921f595f28960abcdce6dfbed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/14/2afac97f-b204-46a1-beb3-b4be71aa0fec.png?resizew=270)
(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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186dee1a1cf68677d143172a2a50709c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)在(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186dee1a1cf68677d143172a2a50709c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/a0ed1ec316bc54c37c4286c208f55667.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/ddb669314021763507b64b420b2e33b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2023-09-24更新
|
198次组卷
|
4卷引用:2023年济南一模(二次函数综合)
2 . 用72米木料制作成一个如图所示的“目”形长方形大窗框(横档
,
也用木料).其中
,要使窗框
的面积最大,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbc23fd8b1c34f76d59d165ddba3f85.png)
![](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/2023/9/26/685681ed-1464-42bc-9caa-41fad4b5c208.png?resizew=130)
A.8米 | B.9米 | C.10米 | D.![]() |
您最近一年使用:0次
3 . 如图,某农场要盖一排三间长方形的羊圈,打算一面利用旧墙(足够长),其余各面用木材围成栅栏,该农场计划用木材围成总长
的栅栏,设每间羊圈垂直于墙的一边长为
,三间羊圈的总面积
,则
关于
的函数解析式是__________ ,
的取值范围是__________ ,当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________
时,
最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dee2e8849924124cbb31f9c6f15479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa2d65026770c5505f8adeb450e43b.png)
![](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/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/6ee46c53-9eef-4c36-9d0c-01d61ec6721f.png?resizew=152)
您最近一年使用:0次
4 . 为了扩大家禽养殖规模,小明爷爷计划用
的建筑材料在一个空地上搭建家禽养殖场,如图所示是家禽养殖场的平面图,分为三个区,长方形
区为鸭舍,长方形
区为鸡舍,鹅舍是正方形
,已知围成鸡舍的建筑材料与围成鹅舍、鸭舍的建筑材料之和一样多,设
.
(1)用含
的代数式表示
;
(2)设长方形
的面积为
,求
与
之间的函数关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190e6fb73fc3c242054df2fe850f2f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4923385f9ef2e9e3b4df8ca62579e634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16127589145ddeef95de987a90c4cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ae4ba9cdd6b3656ddd6bb53e5236d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/0fb87ef1-3054-4857-a45f-7b595a455ae6.png?resizew=166)
(1)用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)设长方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec07464a1b5bc7a2cc338b1a13e0f4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a20728e9a9e3018723f2a86f24f332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
5 . 如图,已知二次函数
的图象过点
,
.
(2)若二次函数图象与
轴的另一个交点为
,在抛物线上存在一点
,使
的面积为10,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae140e4db2c5563e5f902fcbebaac262.png)
(2)若二次函数图象与
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
6 . 市政府要规划一个形如梯形
的花园,如图,
米.园林设计者想在该花园内设计一个四边形
区域来种植花卉,其他区域种植草皮,已知种植花卉的费用为每平方米100元.要求E、F分别位于
、
边上,
,且
米.为了节约成本,要使得种植花卉所需总费用尽可能的少,即种植花卉的面积尽可能的小,请根据相关数据求出种花卉所需总费用的最小值为 __________ 元.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b557e5adbc95896574e3a6a6bf0ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946c16d99496d31ce4d87301a4793393.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/b8b1472e121da0ae5550329cfda5f0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531385e8d18256f719ece3ea6e8d1bb2.png)
您最近一年使用:0次
7 . 如图,抛物线
与x轴交于点
,
.与y轴交于点C,
,直线
交抛物线于点E,且
.
(2)若点M为直线
上一点,点N为直线EC上一点,求
的最小值;
(3)点P为抛物线上一点,点Q为平面内一点,是否存在点P,Q,使得以E,C,P,Q为顶点的四边形是矩形?若存在,求出点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6337d68cd5653767e3a1889b8b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41769e5e233f3089146e49fb0bdf957f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eaa14e4ad0a1e2898c7f9a61e2ae326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb3ebb69a2f72787c3630de388dd5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98de02d1d5b7ac04bce54be393218922.png)
(2)若点M为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f374414357b609bc2a5fa5725ab82f11.png)
(3)点P为抛物线上一点,点Q为平面内一点,是否存在点P,Q,使得以E,C,P,Q为顶点的四边形是矩形?若存在,求出点Q的坐标;若不存在,请说明理由.
您最近一年使用:0次
8 . 如图,矩形的长、宽各增加
,则扩充后的矩形面积y与x的关系式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/12/768017ed-c090-4764-8f90-0710beb62b0a.png?resizew=160)
您最近一年使用:0次
9 . 如图,用一段长为
的篱笆围成一个一边靠墙的矩形场地,若墙的最大可利用长度为
,当这块矩形场地的面积最大时,平行于墙的一边长为_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab5f059b8406993a0d17271b1cb3905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f751f4679c27bc2b4c1e0e56d7f91708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/24/253845af-6846-41f5-bdd2-ddda124894ca.png?resizew=225)
您最近一年使用:0次
2023-08-28更新
|
252次组卷
|
4卷引用:22.2+二次函数与实际问题(题型精讲精练)1(原卷版)
(已下线)22.2+二次函数与实际问题(题型精讲精练)1(原卷版)2023年湖北省襄阳市东津新区中考模拟数学试题黑龙江省大庆市景园中学2023-2024学年九年级上学期月考数学试题云南省昆明市盘龙区昆明市第二十一中学2023-2024学年九年级上学期期中数学试题
10 . 如图,是某水上乐园为亲子游乐区新设滑梯的示意图,其中线段
是竖直高度为6米的平台,滑道分为两部分,其中
段是双曲线
,
段是抛物线的一部分,两滑道的连接点B为抛物线的顶点,B点的竖直高度为2米,滑道与水平面的交点D距
的水平距离为8米,以点O为坐标原点建立平面直角坐标系,距直线
的水平距离为x.
(1)请求出滑道
段y与x之间的函数关系式;
(2)当滑行者滑到C点时,距地面的距离为1米,求滑行者此时距滑道起点A的水平距离;
(3)在建模实验中发现,为保证滑行者的安全,滑道
落地点D与最高点B连线与水平面夹角应不大于
,
,求
长度的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3080b9d9aaace24823a0fd8eb469e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/25/0459a8c8-7a68-4041-abc2-ee74c85b003c.png?resizew=188)
(1)请求出滑道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)当滑行者滑到C点时,距地面的距离为1米,求滑行者此时距滑道起点A的水平距离;
(3)在建模实验中发现,为保证滑行者的安全,滑道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45140ac8c3d449a3cc184aa815096a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
您最近一年使用:0次