1 . “二十四节气”是中国古代劳动人民智慧的结晶,它包括立春、惊蛰、清明、立夏等,同时,它与白昼时长密切相关,如图所示的是一年中部分节气所对应的白昼时长示意图.下列选项中,白昼时长最短的节气是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/516481e0-0a52-4fed-94d2-872b9e24aa71.png?resizew=333)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/516481e0-0a52-4fed-94d2-872b9e24aa71.png?resizew=333)
A.立春 | B.清明 | C.小暑 | D.白露 |
您最近一年使用:0次
2 . 如图,
是等腰直角三角形,
,
,点P在
的边上沿路径B→A→C移动,过点P作
于点D.设
,
的面积为
(当点P与点B或点C重台时,y的值为0)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/84155228-bb5b-4db6-8093-52869c3bdee0.png?resizew=135)
小姜根据学习函数的经验,对函数y随着自变量x的变化而变化的规律进行了探究.下面是小姜的探究过程,请补充完整:
(1)求y与x的函数关系,并写出自变量x的取值范围.
(2)通过取点、画图、测量,得到了x与y的几组值,如下表:
请直接写出:
______,
______.
(3)如图,在平面直角坐标系中,描出已补完值后的表中各对对应值为坐标的点,并用平滑的曲线画出该函数的图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/b648ecf5-12d2-4e8a-b9c2-b8a5166634ed.png?resizew=144)
(4)结合画出的函数图象,写出该函数的一条性质:______.(写出一条即可)
(5)结合画出的函数图象,解决问题:当
的面积为
时,
的长度为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9547f6b5c7c54d216ecea72becb7d373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65334978b0519b379910dfc4acf8344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6959d41b68667c43ac1e20ff08432f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c317638ef9b764d99bfbb1a944da1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/84155228-bb5b-4db6-8093-52869c3bdee0.png?resizew=135)
小姜根据学习函数的经验,对函数y随着自变量x的变化而变化的规律进行了探究.下面是小姜的探究过程,请补充完整:
(1)求y与x的函数关系,并写出自变量x的取值范围.
(2)通过取点、画图、测量,得到了x与y的几组值,如下表:
x(cm) | 0 | ![]() | 1 | ![]() | 2 | ![]() | 3 | ![]() | 4 |
y(cm![]() | 0 | ![]() | m | ![]() | 2 | ![]() | ![]() | n | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
(3)如图,在平面直角坐标系中,描出已补完值后的表中各对对应值为坐标的点,并用平滑的曲线画出该函数的图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/b648ecf5-12d2-4e8a-b9c2-b8a5166634ed.png?resizew=144)
(4)结合画出的函数图象,写出该函数的一条性质:______.(写出一条即可)
(5)结合画出的函数图象,解决问题:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d466b0620e9e7340600c9734ee2116a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72026e70f45cea6a7c49881592e73a02.png)
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3 . 如图,在四边形
中,
,
,过点A作
于点E,
,
,
,动点P从点B出发,沿
运动,到达点D时停止运动.设点P的运动路程为x,
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/6a2fb288-1789-4d6f-aa42-766994fa67f6.png?resizew=470)
(1)请直接写出
与x之间的函数关系式以及对应的的取值范围;
(2)请在直角坐标系中画出
的图象,并写出函数
的一条性质;
(3)若直线
的图象如图所示,结合你所画
的函数图像,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/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cfd06965af6014208127f2880b476b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f218914337edd06e59e75d90b777e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760a51352cf6fc58a0cd0797763b90eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729684f958ad60b8e905fe1e1da53c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/6a2fb288-1789-4d6f-aa42-766994fa67f6.png?resizew=470)
(1)请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)请在直角坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
您最近一年使用:0次
4 . 如图,在中,
点D为
中点,点P 从点 D出发,沿D→C→A方向以每秒1个单位的速度匀速运动到点A.设点P 的运动时间为x秒,
的面积为y.
(1)直接写出y与x的函数关系式,并注明x的取值范围;
(2)画出y的函数图像,观察y的函数图像,并写出一条该函数的性质;
(3)观察图像,直接写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
您最近一年使用:0次
名校
5 . 如图,已知
中,
,
,点
、
分别是
、
的中点,点
从点
出发,沿折线
,运动,到点
后停止.连接
,设点
运动的路程为
,
的面积为
,请解答下列问题:
(2)根据函数表达式,在坐标系中画出函数图象,并写一条该函数的性质: ;
(3)请结合图象直接写出当
时,x的取值范围是 (保留一位小数,误差不超过0.2).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8817091d0f4b7d7ac6df560cb63c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b51c137ebe3bfb57a47704e8772de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)根据函数表达式,在坐标系中画出函数图象,并写一条该函数的性质: ;
(3)请结合图象直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ac634339d8315bd201d6d9fb52684d.png)
您最近一年使用:0次
名校
6 . 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)
您最近一年使用:0次
名校
7 . 如图,已知在矩形
中,
,点
从点
出发,沿射线
方向一直运动.连接
,过点
作
的高
,设
的长为
的长为
.请解答下列问题:
与
之间的函数关系式,并写出自变量取值范围;
(2)根据函数表达式,在坐标系中画出函数图像,并写一条该函数的性质:____________;
(3)若
,直接写出当
时
的取值范围______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7968a3f89a2ded756ffd9c3f69e1d35a.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4bce2463e8caf5f233ca0fab34264f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eb438fad363a303d2a8e370c2a68a3.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)
(2)根据函数表达式,在坐标系中画出函数图像,并写一条该函数的性质:____________;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98ab48eb99af092802a6b7576eaafb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22cccd1f9e838f8065f004ac14377b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
8 . 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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2024-03-18更新
|
403次组卷
|
2卷引用:重庆市巴南区2023-2024学年九年级上学期11月月考数学试题
9 . 如图,已知矩形
的边长为
分别在边
上,且
,点
是矩形边上的一个动点,点
从
出发,经过点
,到D点停止.记
点走过的路程为
,四边形
的面积为
.
(1)请求出
关于
的函数关系式,并写出自变量的取值范围;
(2)在坐标系中画出
的函数图象;观察函数图象,请写出一条该函数的性质;
(3)根据函数图象直接写出当四边形
的面积为4时
的值.(误差不超过0.1).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fa40b98f0384bed9369645920de8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb2c8786b3375fa19b35cd9343a9b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea89fc17da9a9cff2610109576a8357d.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/7f9e8449aad35c5d840a3395ea86df6d.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29560c08663a8e61d56c8ba3ef5633d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/97ffd6e1-1192-4c19-99ee-290d17645d95.png?resizew=390)
(1)请求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)在坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)根据函数图象直接写出当四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29560c08663a8e61d56c8ba3ef5633d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
10 . 如图,函数图像表示一只小虫子在飞行过程中离地面的高度
随飞行时间
的变化情况,则这只虫子飞行的最高高度约为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/d1e407bb-a394-4450-8360-0ffd74d16afc.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f619b9d9ddca5bdcb7986258ea8d5d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d744165d6aad705f64de41a9d931750a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/d1e407bb-a394-4450-8360-0ffd74d16afc.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次