名校
1 . 如图1,在
中,
.点
从点
出发,以
的速度沿折线
运动,同时点
从点
出发,以
的速度沿线段BC运动.当点
到达点
时,P,Q停止运动.设点
运动的时间为
的面积为
.
与
的函数关系式,并注明自变量
的取值范围;
(2)在图2平面直角坐标系中,画出
的函数图象,并写出这个函数的一条性质:____________;
(3)若
与
的函数图象与直线
有两个交点,则
的取值范围是_____________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233dfdb7acc11479e32a5a9b7181f6a1.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/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.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/2b9174c3b1324cf81098e42e0480bcc8.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/b4c6af218aff8658669b41424704755d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3fb1f6eaca101fce295d188e193e95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)在图2平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe23a081886ea0db414ee21917300fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2024-06-07更新
|
345次组卷
|
2卷引用:2024年重庆市巴蜀中学校中考压轴考试(二模)数学试题
名校
2 . 如图1,
中,
,
,
.
在线段
上,且
.动点
从点
出发,以每秒2.5个单位长度的速度沿折线
运动.动点
从点
出发,以每秒1.5个单位长度的速度沿折线
运动,点
、
同时从点
出发,当点
运动到点
时,两点同时停止运动.设点
的运动时间为
秒,点
、
的距离为
.
关于
的函数表达式并注明自变量
的取值范围;
(2)若函数
,请在图2的平面直角坐标系中分别画出函数
、
的图象,并根据图象写出函数
的一条性质;
(3)根据函数图象,直接估计当
时
的取值.(结果保留1位小数,误差不超过0.2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0268d04b9dea7629af27af9a0285a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb937cd4f097a61ea6bdb83f1cf4dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784c0943df86c6729de9503c316bacd5.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/2a30f3a8b673cc28bd90c50cf1a35281.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd194b8bba6e7804522bcaacb8a593a.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/54015ff5b49e3283901da1291b6b921d.png)
(3)根据函数图象,直接估计当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
3 . 如图,四边形
中,
,
,
,
,点
从
出发,沿着折线
运动,到达点
停止运动.设点
运动的路程为
,连接
、
,记
的面积为
,请解答下列问题:
关于
的函数关系式,并写出自变量
的取值范围 ;
(2)在平面直角坐标系中,画出该函数的图象,并写出函数的其中一条性质 ;
(3)已知
图象如图所示,结合你所画的函数图象,直接写出
时
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/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2acebaa83211f4777cff14776d7a26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f813caeb89b027dfab83239353550cec.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/d6108f63b5cf297a59bdec979d227f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf13c20214c9f40e8c165c0de7106cc.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)在平面直角坐标系中,画出该函数的图象,并写出函数的其中一条性质 ;
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8ae468172fd85e6fc4ec1cb7cbb637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2b0811eb7e92ad03cf330321bf2096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
4 . 如图,长方形
边长
,
,动点
以每秒1个单位长度的速度从点
出发,沿折线
方向运动,动点
以每秒1个单位长度的速度从点
出发,沿折线
方向运动,两动点同时出发,两点相遇时同时停止运动,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)结合函数图象及知识,直接写出面积
的为时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963e18a44d9e95c1ba2f1188115876d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.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)结合函数图象及知识,直接写出面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed923cd892217069a0b4266586049f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
5 . 如图,在
中,
,
,
,点P为直角边
,
边上一动点,现从点B出发,沿着
的方向运动至点A处停止.点P在
上的运动速度为每秒2个单位,在
上的运动速度为每秒
个单位,运动时间为x秒,
的面积为y.
(2)根据这个函数的图象,写出该函数的一条性质:
(3)结合函数图象,当
时,直接写出y的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7012d1ff11db5e150182e19646814cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec818fc0754296163206e1e8870f9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
(2)根据这个函数的图象,写出该函数的一条性质:
(3)结合函数图象,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd98122274c7a3b2767906627721c28.png)
您最近一年使用:0次
名校
6 . 如图,在等腰
中,
,
,
为
中点,动点
从点
出发,沿着
方向运动至点
处停止.连接
,设点
的运动路程为
,
的面积为
.
与
的函数表达式,并写出自变量
的取值范围;
(2)请在图2中画出函数
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2时
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08313da7b66283d2e0b3987f3e6761f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d0984bb4715e5e6100153012ddc5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f76579f2e9a941748236107835ce101.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/df7f9f7952c4be18cb73393047c2ad75.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)请在图2中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)结合函数图象,写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
7 . A,B两地之间有一快递中转站C,且它们在同一直线上.快递员甲、乙骑电动车分别从A地、B地同时出发以各自的速度匀速前往中转站C地取货.恰好两人同时到达C地.取货后(取货时间忽略不计)各自沿原路线原速返回,返回途中甲突然想起乙拿错一件快递,于是甲立即掉头以原来速度的3倍追及乙,乙一直保持原速返回B地,经过一段时间,甲赶上乙后,两人立即以甲提速后的速度一起前往中转站C核对信息.已知乙的速度为15千米/时.在此过程中,甲、乙两人距C地的距离和 为y(单位:千米)与出发时间x(单位:小时)之间的关系如图所示.
(1)填空:
两地距离为______千米,
______;
(2)当快递员甲追上快递员乙时,他们距中转站C地多少千米?
(3)当两人相距3千米,请直接写出x的值.
(1)填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)当快递员甲追上快递员乙时,他们距中转站C地多少千米?
(3)当两人相距3千米,请直接写出x的值.
您最近一年使用:0次
8 . 初中阶段的函数学习中,我们经历了列表、描点、连线画出函数图象,并结合图象研究函数性质的过程,以下是我们研究函数
图象及性质的部分过程,请按要求完成下列各小题.
(2)观察该函数图象,写出该函数图象的一条性质;
(3)已知函数
图象如图所示,结合你所画的函数图象,直接写出不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621effd649cb6b05f880733b8cee6606.png)
x | … | ![]() | ![]() | ![]() | ![]() | 0 | ![]() | 1 | 3 | 4 | 5 | … |
y | … | ![]() | ![]() | ![]() | ![]() | _____ | ![]() | ______ | ![]() | ______ | ![]() | … |
(2)观察该函数图象,写出该函数图象的一条性质;
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8772e678b82ff771138d87f6679ea5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733f1a56c6a621fbd4dcc9215cf8343.png)
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9 . 如图1,在菱形
中,
.动点P从点C出发,以每秒1个单位长度的速度沿着折线
方向运动,到点A处停止,过点P作
交菱形一边于点Q,设点P运动时间为x秒,线段
的长度为y,请回答下列问题:
(2)请在图2的平面直角坐标系中画出函数y的图象,并根据图象写出函数y的一条性质;
(3)结合函数图象,请直接写出当
时x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5dfb38ba23bdc8df994d52b0372721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e109b2df4450b1a7a15b94b430b7ece5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8302ad6e9edc432e107d946086037ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)请在图2的平面直角坐标系中画出函数y的图象,并根据图象写出函数y的一条性质;
(3)结合函数图象,请直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ce34763c38bb612af3a944528f33cf.png)
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10 . A,C,B三地依次在一条笔直的道路上甲、乙两车同时分别从A,B两地出发,相向而行.甲车从A地行驶到B地就停止,乙车从B地行驶到A地后,立即以相同的速度返回B地,在整个行驶的过程中,甲、乙两车均保持匀速行驶,甲、乙两车距C地的距离之和
与甲车出发的时间
之间的关系如图所示,则甲车到达B地时,乙车距B地的距离为多少
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2565497b6ba6f0cdc2be772096801c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcea0f32af0da4e4ce66764d09db9ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
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