名校
1 . 如图1,在
中,
,
,直线
经过点
且与边
相交,动点
从点
出发沿
路径向终点
运动,同时,动点
从点
出发沿
路径运动,当动点
与动点
相遇后,经过1秒,动点
立马掉头并保持原速追动点
,当
,
两点均运动到
点时,运动结束.运动过程中动点
,
在折线
上的距离为
,运动时间为
(秒).变量
与
之间的关系如图2所示,请回答以下问题:
(1)
_______
,
_______,
的运动速度为_______
;
(2)当点
,
均在
边上时,求
的面积
与运动时间
(秒)的关系式;
(3)若在运动过程中,分别过点
和点
作
于点
,
于点
,当
和
全等时,直接写出
的值(
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2410ff5236b24ff24f2cb54c8e733f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1da0304251a6a0966cd5238660dfa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/acc290b44635265137fdf13146b6a6d9.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f153ca324c9fd5fd0247b1f6e9fa53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a8e2712494bc2022c30d37e395cf10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/c756fec4-ea63-4a03-8b4a-542ffeca2fda.png?resizew=398)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1dce4a03cf2c9a68b2399d4339a035.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87b2f781cafa7989d81f9bf8c42b150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9091bc1886a3fd3d17160b2d41ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若在运动过程中,分别过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720a9d0830aaa9d7ebb8af173e9da83e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a320accba1baa44d2d8a5a3c34307f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66aac85b3ff48c1516ff40362004cdbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92fb4c7a4bf45e467b2d90f6325056c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0963df6134c38a6edb0331de4db07e.png)
您最近一年使用:0次
名校
2 . 如图,在正方形
中,对角线
,
交于点O,
,动点P以每秒
,从点A出发,沿折线
方向运动,设运动时间为
,动点Q是射线
上一点,且
,记
的面积为
,
的面积为
.
与x之间的函数关系式,并写出x的取值范围;
(2)在平面直角坐标系中,画出
和
的函数图象,并写出函数
的一条性质:______;
(3)结合函数图象,估计当
时x的近似值.(近似值保留一位小数,误差不超过0.2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcd6ff25db166032b877636913904ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abbd707a7ce22ba2ffde6f2bec78b604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a352d49d096fcda8fd55cc8287a0b4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88be8fd8614cb0a4b440d41921c36c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21413bb0e5ef542ce03de2e0d3f8f67e.png)
(2)在平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)结合函数图象,估计当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
您最近一年使用:0次
真题
名校
3 . 如图,在平面直角坐标系中,菱形
的顶点A在y轴的正半轴上,顶点B、C在x轴的正半轴上,
,
.点M在菱形的边
和
上运动(不与点A,C重合),过点M作
轴,与菱形的另一边交于点N,连接
,
,设点M的横坐标为x,
的面积为y,则下列图象能正确反映y与x之间函数关系的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaaacb89f70e36e68609cb8c87ad4887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbec2b399dca73cf28e33ec10b7a347f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf20f734ac54ab0eec2e1c170a3a24f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-08-31更新
|
1344次组卷
|
11卷引用:重庆市长寿中学校2023-2024学年 九年级上学期第一次月考数学试题
重庆市长寿中学校2023-2024学年 九年级上学期第一次月考数学试题2023年辽宁省盘锦市中考数学真题(已下线)专题28 动点综合问题(共16道)-学易金卷:2023年中考数学真题分项汇编(全国通用)(已下线)专题1 选择题题型2024年广东省汕头市金园实验中学中考一模数学试题2024年山东省临沂市兰山区中考一模数学模拟试题(已下线)查补重难点04 二次函数图象与性质的运用-【查漏补缺】2024年中考数学复习冲刺过关(江苏专用)2024年江苏省淮安市盱眙县第一中学中考数学模拟测试 (一)2024年黑龙江省大庆市让胡路区中考模拟数学试题2024年江西省鹰潭市中考模拟数学试题(已下线)2024年山东省烟台市中考数学真题变式题6-10题
名校
4 . 如图,在等腰
中,
,
,
,动点
从
点出发,沿
运动,点
运动到点
时停止运动,过点
作
交
于点
,记
,
点的运动路程为
.
关于
的函数关系式,并注明
的取值范围,并在下面的平面直角坐标系中直接画 出
的函数图象.
(2)根据所画的函数图像,写出该函数的一条性质:_________________________
(3)在射线
上有一动点
,始终满足
,利用所求函数解决问题:当
时,直接写 出
的取值范围.
![](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/4066ed8dde07a00665ad52a5d15c7531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1da0304251a6a0966cd5238660dfa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/902f24325565a9dd95128a633a240da2.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/b9ff0a6113c45cbf1bba72ebba589a86.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/d053b14c8588eee2acbbe44fc37a6886.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/d053b14c8588eee2acbbe44fc37a6886.png)
(2)根据所画的函数图像,写出该函数的一条性质:_________________________
(3)在射线
![](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/b0642b7d79a31d867922895236c5c3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d539c348fbc5d62edf0f1338d8dd953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2023-08-23更新
|
733次组卷
|
4卷引用:重庆市沙坪坝区第一中学校2022-2023学年九年级下学期期中数学试题
重庆市沙坪坝区第一中学校2022-2023学年九年级下学期期中数学试题重庆市开州区云枫教育集团2023-2024学年九年级上学期12月月考数学试题2023学年重庆市巴蜀中学九年级下学期模拟数学模拟预测题(5.20))(已下线)中考重点05 动态几何+函数图像(6题型+满分技巧+限时检测)-2024年中考数学【热点·重点·难点】专练(重庆专用)
名校
5 . 在一条直线上依次有
、
、
三个港口,甲、乙两船同时分别从
、
港口出发,沿直线匀速驶向
港,最终到达
港停止.设甲、乙两船行驶
后,与 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
港的距离 分别为
、
,
、
与
的关系如图所示.
(1)
、
两港口间的距离为______
,
______;
(2)甲船出发几小时追上乙船?
(3)在整个过程中,什么时候甲乙两船相距
?
![](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/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b11be6dd6af544407a1d7da7225a7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3911529d81890c63c388d42b105c657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/1/39453a79-b688-4c1e-980a-f9f4f2ffa17c.png?resizew=209)
(1)
![](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/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)甲船出发几小时追上乙船?
(3)在整个过程中,什么时候甲乙两船相距
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3fb33e7fb8709bd8d5db686644d50b.png)
您最近一年使用:0次
2023-08-23更新
|
552次组卷
|
8卷引用:重庆十一中教育集团初2022-2023学年七年级下学期期中数学试题
重庆十一中教育集团初2022-2023学年七年级下学期期中数学试题江西省吉安市十校联盟2023-2024学年八年级上学期期中数学试题(已下线)八年级数学期末模拟卷02(上海专用,测试范围:沪教版第16-19章)-学易金卷:2023-2024学年初中上学期期末模拟考试(已下线)专题8.4 期末复习之解答压轴题十二大题型总结-2023-2024学年八年级数学上册举一反三系列(北师大版)(已下线)专题7.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题6.4+02期末复习之解答压轴题十八大题型总结-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题16.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(沪科版)四川省雅安市雅安中学2023-2024学年七年级下学期4月月考数学试题
6 . 如图,在矩形
中,
,
,点 P 从点A 出发,沿
路径运动,到达 D 点停止运动,点 Q 从点A 出发,沿射线
方向运动。设点 P 运动的路程为 x,点 Q 运动的路程为
.若
,记
,
(1)求出
,
与 x 的函数关系式,并注明 x 的取值范围;
(2)补全表格中
的值
以表中各组对应值作为点的坐标,在直角坐标系内描出相应的点,并在 x 的取值范围内画出
的函数图象;
(3)在直角坐标系内直接画出
的函数图象,观察函数图象,写出一条该函数的性质
。
(4)结合所画图象,直接写出当
时,x的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc3dcc4325297dac77a92c0682a6cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9547f6b5c7c54d216ecea72becb7d373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd3459bdb8aeaa2da6f69496b604f3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726ef153f976771c6f162dfe651dc83b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/5/96982eef-0df5-4204-a95e-98cffc81d625.png?resizew=445)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)补全表格中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
x | 1 | 2 | 5 | 6 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)在直角坐标系内直接画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
。
(4)结合所画图象,直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421a7d6f54bf58a7a4f4ce61e06aefa9.png)
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7 . 在平行四边形
中,
,
,
,点P从A点出发,沿着
做匀速运动,到达点D时,停止运动,过点P作
,交直线
于点Q,设点P的运动路程为x,线段
的长为y(点P与点A,D重合时,
的长为0).
(1)请直接写y与x的间的函数表达式,注明自变量x的取值范围,并在给出的平面直角坐标系中画出y的函数图象;
(2)请写出函数y的一条性质;
(3)结合图象,在点P的运动过程中,当线段
的长
时,自变量x的取值范围为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4853b4705dee3de86e18a346ee3ae853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be742533a98206940a01156e5cd9ae30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/26/598f23c2-521f-4804-b78e-75339d5f3d62.png?resizew=712)
(1)请直接写y与x的间的函数表达式,注明自变量x的取值范围,并在给出的平面直角坐标系中画出y的函数图象;
(2)请写出函数y的一条性质;
(3)结合图象,在点P的运动过程中,当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec336faee8689281a6f6b465e7fcff9.png)
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8 .
年
月
日,世界上最长的港珠澳大桥正式通车,香港口岸途经西人工岛到达澳门口岸.五一期间小辉与小亮两家人在港澳旅游,某日两家人从香港口岸前往澳门口岸,当小辉一家乘坐穿梭巴士出发
分钟后,小亮一家乘坐跨境出租车出发,两车在全程中均保持匀速行驶,跨境出租车比穿梭巴士早到
分钟,过海关时间不考虑在内,两车距西人工岛的路程之和
(千米)与小辉家出发的时间
(分钟)之间的关系如图所示,穿梭巴士出发_____ 分钟到达澳门口岸.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6567511bb9486b2ca7452b870abd2a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e60fbe6820130fb20abc555a94b5ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c6ad91b31603e0d323c560726ef08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/0ffe9783-4598-492d-8277-6ea40c8edcc1.png?resizew=251)
您最近一年使用:0次
9 . 小华、小伟相约去从甲地到乙地玩耍,两人到达甲地后,小华想起要去丙地取一份文件.于是小华先快于小伟的速度匀速前往丙地,取文件还耽误了5分钟,之后掉头以起先速度的
倍匀速返回甲地再前往乙地,小伟匀速先到乙地后便等待.已知丙、甲、乙三地依次在一直线上,设两人同时从甲地出发所用的时间为x(单位:分钟),两人的距离为y(单位:米),其函数关系如图所示,则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f558992e649b93ee36f37513781311a8.png)
A.![]() | B.![]() | C.![]() | D.甲、丙两地距离800米 |
您最近一年使用:0次
2023-07-03更新
|
236次组卷
|
3卷引用:重庆市忠县2022-2023学年八年级下学期期末数学试题
重庆市忠县2022-2023学年八年级下学期期末数学试题(已下线)专题19.6 函数的图象(分层练习)(提升练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)河北省保定市曲阳县2023-2024学年八年级下学期期中数学试题
名校
10 . 如图
,已知六边形
相邻的两边互相垂直,动点
从六边形的其中一个顶点出发,沿着六边形的边以每秒
的速度运动,到达点
后以每秒
的速度运动,当
继续运动到另一个顶点时,以每秒
的速度反向运动到
点处停止运动.运动过程中点
与
,
两点形成的三角形面积为
,运动时间为
秒
.
与
图象如图2所示,请回答以下问题:
(1)
,当点
运动到顶点 时开始反向运动;
(2)当点
在
上运动时,求
与
的关系式;
(3)当
时,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9091bc1886a3fd3d17160b2d41ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1fa34438b5f4ab8a2d5bfa405984be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/5/a3318a17-2d9b-40e7-a6ed-99ad5c3aa9e7.png?resizew=400)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5f441402ee632377b6bedeb060f3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)当点
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bec7742beab2588c2ca5a716e1d4781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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