如图,在矩形
中,
,
,动点
,
分别以每秒1个单位长度的速度同时从点
和点
出发,点
沿折线
方向运动,点
沿折线
方向运动,当点
到达点
时停止运动.设运动时间为
秒,
的面积为
.
关于
的函数表达式并注明自变量
的取值范围;
(2)在给定的平面直角坐标系中画出这个函数的图象,并写出该函数的一条性质;
(3)结合函数图象,写出当
的面积不小于6且不大于11时
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d311b8b003421d42aa6a3673d1e0baa.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5a0a6e5b3f489a7032ea5116c96024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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)在给定的平面直角坐标系中画出这个函数的图象,并写出该函数的一条性质;
(3)结合函数图象,写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5a0a6e5b3f489a7032ea5116c96024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
更新时间:2024-04-25 14:51:42
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】图,四边形
中,已知
,动点
从
点出发,沿边
运动到点
,动点
同时由
点出发,沿折线
运动点
停止,在移动过程中始终保持
,已知点
的移动速度为每秒1个单位长度,设点
的移动时间为
秒,
的面积为
,已知
与
之间函数关系如图②,其中
为线段,曲线
,
为抛物线的一部分,根据图中信息,解答下列问题:
![](https://img.xkw.com/dksih/QBM/2022/5/16/2980802610274304/2984290804023296/STEM/36849c09-e87b-4e00-a6ac-501098e57baf.png?resizew=387)
(1)图①
______,
______;
(2)分别求线段
,曲线
所对应的函数表达式;
(3)当
为何值,
的面积为6?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4b1ac1134286a5c6122ed68552e05c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84733f9dc908ceb11459cc2aed580ab.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb949f2a7ee89566c5c02b75043f6a3.png)
![](https://img.xkw.com/dksih/QBM/2022/5/16/2980802610274304/2984290804023296/STEM/36849c09-e87b-4e00-a6ac-501098e57baf.png?resizew=387)
(1)图①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
(2)分别求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb949f2a7ee89566c5c02b75043f6a3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
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解答题-问答题
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【推荐2】在△ABC中,点P从B点开始出发向C点运动,在运动过程中,设线段AP的长为y,线段BP的长为x(如图甲),而y关于x的函数图象如图乙所示 Q(1,
)是函数图象上的最低点 请仔细观察甲、乙两图,解答下列问题
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573665940529152/1573665946337280/STEM/134955c62d84480fa3ab5fed4891a60a.png?resizew=397)
(1)请直接写出AB边的长和BC边上的高AH的长;
(2)求∠B的度数;
(3)若△ABP为钝角三角形,求x的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573665940529152/1573665946337280/STEM/134955c62d84480fa3ab5fed4891a60a.png?resizew=397)
(1)请直接写出AB边的长和BC边上的高AH的长;
(2)求∠B的度数;
(3)若△ABP为钝角三角形,求x的取值范围
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【推荐1】如图,正方形
的边长为8cm,动点E从B点出发,在正方形的边上由
运动,设运动的时间为
,
的面积为
,S与t的函数图象如图所示,请回答下列问题:
(1)点E在
上运动时间为
,在
上运动的速度为
,
的面积S的最大值为
;
(2)求点E在
上运动时S与t的函数解析式;
(3)当t为何值时,
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd23cf0ee5cd9a31bd9923c03e2b159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9091bc1886a3fd3d17160b2d41ded.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/98d552b0-2fd9-4028-acb4-909a902aa05a.png?resizew=326)
(1)点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65502a7ea4d1ce6d6d8c720845c73e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1dce4a03cf2c9a68b2399d4339a035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
(2)求点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
(3)当t为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce019005b5243d67ed1a996d4e752a31.png)
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【推荐2】如图,据函数
的图像,回答问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/13/029d04dc-e915-4a31-bbbf-aa6361ac3380.png?resizew=152)
(1)当
时,y=_________;
(2)图像与坐标轴的交点坐标是___________;
(3)当
时,y的取值范围是_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/13/029d04dc-e915-4a31-bbbf-aa6361ac3380.png?resizew=152)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(2)图像与坐标轴的交点坐标是___________;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c27b56242f028fc8cfb3e496dd5af5.png)
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解答题-作图题
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【推荐1】甲、乙两人同时从A地前往相距5千米的B地,甲骑自行车,途中修车耽误了20分钟,甲行驶的路程s(千米)关于时间t(分钟)的函数图像如图所示;乙慢跑所行的路程s(千米)关于时间t(分钟)的函数解析式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f54e1d0aa885294fd3a504455567e2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/8/6a4730a6-a356-40c1-b722-fb74f1cc2b61.png?resizew=220)
(1)在图中画出乙慢跑所行的路程关于时间的函数图像:
(2)甲修车后行驶的速度是每分钟_______米;
(3)甲、乙两人在出发后,中途_________分钟时相遇
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f54e1d0aa885294fd3a504455567e2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/8/6a4730a6-a356-40c1-b722-fb74f1cc2b61.png?resizew=220)
(1)在图中画出乙慢跑所行的路程关于时间的函数图像:
(2)甲修车后行驶的速度是每分钟_______米;
(3)甲、乙两人在出发后,中途_________分钟时相遇
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【推荐2】已知点P(x,y)在第一象限,且x+y=7,点A的坐标为(6,0),设
OPA的面积为S.
(1)用含x的代数式表示S,则S= ,自变量x的取值范围是 ;
(2)建立平面直角坐标系,画出函数S关于自变量x的图象;
(3)当
OPA的面积为18时,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
(1)用含x的代数式表示S,则S= ,自变量x的取值范围是 ;
(2)建立平面直角坐标系,画出函数S关于自变量x的图象;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
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名校
【推荐1】如图,在矩形中,点E为
边的中点,动点P从D点以每秒1个单位长度的速度出发,沿着折线D→C→B方向运动,当点P到达B点时停止运动.若
,
,设动点P的运动时间为x秒,
的面积为y.
(1)请直接写出y与x的函数解析式,并写出自变量x的取值范围;
(2)在直角坐标系中画出y与x的函数图象,并写出该函数的一条性质;
(3)如图直线l为函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c049e84fb8b23e4dea5c786fc40d6d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/580834c9a5e72432968c46b5e42c1286.png)
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名校
【推荐2】如图1,在矩形
中,
.动点
从
出发以
的速度向
运动,动点
从
出发以
沿折线
运动,当点
运动到
时,点
立即停止运动,运动时间记为
.把线段
绕点
逆时针旋转
得线段
,连接
,
,运动过程中四边形
的面积记为
,且
,
的面积记为
.
与
的函数关系式以及对应自变量
的取值范围.
(2)在给定的平面直角坐标系中,画出
的函数图象,并写出函数
图象的一条性质:________.
(3)结合图象,当
时,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262c7476d86456505d7c32413723adb7.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/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c421682f548aa944df7b124b4d732a1b.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a74c45f334b0d49cc203526f7f6e43e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0c289f271a0b39f71d588ea9cea6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217d37ca5469a57cb7417a2ac0d58efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9724cf149ccc974596673c8aaae9558f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)在给定的平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9724cf149ccc974596673c8aaae9558f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(3)结合图象,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421a7d6f54bf58a7a4f4ce61e06aefa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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