1 . 如图,抛物线
交x轴于点A,交y轴于点B,已知经过点A,B的直线的表达式为
,点
是线段
上的一个动点,其中
,作直线
轴,交直线
于D,交抛物线于E.
(2)如图1,作
轴,交直线
于点F,四边形
为矩形,当矩形
的周长为9时,求m的值;
(3)如图2,作
的中垂线
交
于M,
于Q,在
延长线上取点N,使
,求点N与y轴的最远距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd5a9d9ac5d8c5ed449328cb9e02df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e37b122a7273e1251ea3860e74c896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deaf0e32fd982f49886eb7faaa25b48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea1cdf62cac33194e615d5640f70f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(2)如图1,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c782675efb07943bcee0339945a08711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdff15fafea9a3b60d69a1789ef0220a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdff15fafea9a3b60d69a1789ef0220a.png)
(3)如图2,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03526fddc48f9f7298afc3da414c2e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03526fddc48f9f7298afc3da414c2e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d447b23e77bc323ef91121c43894c66.png)
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名校
2 . 如图1,抛物线
经过
,
两点,与
轴交于点
,
为第四象限内抛物线上一点,过点
作
轴于点
,连接
,
,
与
轴交于点
.
(2)设四边形
的面积为
,求
的最大值.
(3)当
时,求直线
的函数表达式及点
的坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358e2987096a67189bcc2a642da39524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d03fa28c117649b0fdfe17eed7b583.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)设四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee08b1af7ff3f8ff8a62e0dee0eb8852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe416c9430984c49437436e965a48c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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3 . 如图,在平面直角坐标系中,
,点B的坐标为
.抛物线
经过A、B两点.
(2)点P是直线
上方抛物线上的一点,过点P作
垂直x轴于点D,交线段
于点E,使
①求点 P的坐标;
②在直线
上是否存在点M,使
为等腰三角形?若存在,求出符合条件的所有点M的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d919d8bc668dcdad86eb54079ddaef86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc5ccf9df767bb1f45c668bf4bc6df87.png)
(2)点P是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b59b6f4ed7436d7788554cf3807e34.png)
①求点 P的坐标;
②在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
您最近一年使用:0次
2024-05-28更新
|
166次组卷
|
2卷引用:2024年山东省枣庄市市中区初中学业水平第二次模拟考试数学试题
4 . 如图,在平面直角坐标系中,直线
与
轴交于点B,与y轴交点C,抛物线
经过B,C两点,与
轴交于另一点A.如图1,点P为抛物线上任意一点.过点P作
轴交
于M.
(2)当
是直角三角形时,求P点坐标;
(3)若点P是直线
上方抛物线上一动点(不与B、C重合),过点P作y轴的平行线交直线
于点M, 作
于点N, 当
的周长最大时,请在
轴上找到一点Q,使
的周长最小,并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9118cc77fc0a045337745890e50cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18269e4b2c08f69b719c4c7e7d71733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf1490f8bd695ad195aa1a52fe36373.png)
(3)若点P是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a6922808e9b59352c25c341cf23851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51ece6bb53c3f5bf2da7d9ee5960e44.png)
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5 . 如图,已知二次函数.
的图象与x轴相交于
,
两点, 与y轴相交于点
,P是第四象限内这个二次函数的图象上一个动点,设点P的横坐标为m,过点P作
轴于点 H, 与
交于点 M.
(2)将线段
绕点 C顺时针旋转
点A的对应点为
判断点
是否落在抛物线上,并说明理由;
(3)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ff2dba976c68740bbff0d1dda6a870c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f16fe689f630d7fbacd9a24d5fe3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11dc695c9548c1baea5d7e75fe9f5d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fbd9b5e5d8be69373850d7faebdaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
(2)将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69781f49899d673ec6ac8c5616b8bf57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7ce6341a175b798b2f8cc5578df38f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3233baa46beda7984214de6e5da0e0e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7aba7a7d8e0701fa93ec90644f5f31.png)
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6 . 如图,在平面直角坐标系中,已知二次函数
的图象与x轴交于点
和点
两点,与y轴交于点
.点D为线段
上的一动点.
(2)如图1,求
周长的最小值;
(3)如图2,过动点D作
交抛物线第一象限部分于点P,连接
,记
与
的面积和为S,当S取得最大值时,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2375a27ead9549550676d4e6a2b47243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1dae05f42110fde12a61fca98bc408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca79b22396d7a03eecaf18dca63bf1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)如图1,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372629a8666de1e9bac3e7daadcac7b6.png)
(3)如图2,过动点D作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844230a06538f3da2f51d8a5cadca06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
您最近一年使用:0次
7 . 某农场有一个花卉大棚,是利用部分墙体建造的.其横截面顶部为抛物线型,大棚的一端固定在墙体
上,另一端固定在墙体
上,其横截面有2根支架
,
,相关数据如图1所示,其中支架
米,
米,两种支架各用了200根.
(1)分别以
和
所在的直线为x轴和y轴建立平面直角坐标系.
①求出改造前的顶部抛物线的函数解析式;
②求出改造前大棚的最大高度;
(2)只考虑经费情况下,求出
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3919fd9225712c8bc637256db1e93bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9345a91e83e732d7a5bc5fec97f275.png)
(1)分别以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
①求出改造前的顶部抛物线的函数解析式;
②求出改造前大棚的最大高度;
(2)只考虑经费情况下,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd93ad139410a0bc761cce65c84f599.png)
您最近一年使用:0次
8 . 如图,抛物线
经过
,
两点,与y轴交于点C,P为第四象限内抛物线上一个动点,过点P作
轴于点M,连接
,
,
与y轴交于点D.
(2)求四边形
面积的最大值;
(3)当
时,求直线
的函数表达式及点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358e2987096a67189bcc2a642da39524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d57173ef4cd72eb270686875dfd623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36488f7dff759ace2a27e56c3857056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee08b1af7ff3f8ff8a62e0dee0eb8852.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe416c9430984c49437436e965a48c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
您最近一年使用:0次
9 . 如图1,在平面直角坐标系中,抛物线
与
轴交于
和
,与
轴交于点
,连接
,
.
(2)如图2,点
为直线
上方的抛物线上任意一点,过点
作
轴的平行线,交
于点
,过点
作
轴的平行线,交直线
于点
,求
周长的最大值;
(3)点
为抛物线上的一动点,是否存在点
使
?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/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993769b494e12c21dff0ee7c53a4a49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.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)
(2)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed283a253b61df01f2a1cdc0cd8003f3.png)
(3)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/ce0f87042e6c1521b35f03f45bf2920f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
10 . 如图1,为打造旅游休闲城市,某地在地面上沿绿道旁的母亲河打造喷水景观,喷出的水柱为抛物线,为保持路面干燥,水柱要喷入河中,图2是其截面图,已知路面
宽为3.5米,河道坝高
为5米,B与A的水平距离
为2.5米.当水柱离喷水口O处水平距离为2米时,离路面距离的最大值为3米,以点O为坐标原点,射线
为x轴正方向建立平面直角坐标系.
(2)出于安全考虑,在河道的坝边A处安装护栏,要求水柱不能喷射到护栏上,则护栏的最大高度是多少米?
(3)水柱落入水中会荡起美丽的水花,从美观角度考虑,水柱落水点要在水面上,当河水降至离路面距离为多少时,水柱刚好落在水面上?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
(2)出于安全考虑,在河道的坝边A处安装护栏,要求水柱不能喷射到护栏上,则护栏的最大高度是多少米?
(3)水柱落入水中会荡起美丽的水花,从美观角度考虑,水柱落水点要在水面上,当河水降至离路面距离为多少时,水柱刚好落在水面上?
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