1 . 如图,在坐标平面
中,一次函数
的图象与反比例函数
的图象交于点
,与
轴交于点
.
(2)当
时,结合函数图象,请直接写出不等式
的解集;
(3)点
为
轴上一个点,连接
,当
为以
为腰的等腰三角形时,请直接写出点
的坐标,不必写出理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95df9c09a491db2a1aab23a6f40aba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a67625061904a41ed5b76e6bc7c046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7928aa28c0a9b8c35eb83c7f0b5bf057.png)
(3)点
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024八年级下·浙江·专题练习
2 . 如图,已知
,
是反比例函数
的图象和一次函数
的图象的两个交点.
(2)求
的面积;
(3)根据图象直接写出不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59252d062d6ea7fb06ac73240f9e8ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77029dd35355f2b499dff7be4c0e84ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)根据图象直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8086ac2060353f31eb68f9c057fed58e.png)
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名校
3 . 如图1,在等腰
中,
,
,
于点
,动点
以每秒1个单位的速度从点
出发沿折线
运动,到达
点停止运动.设点
的运动时间为
秒,连接
,设
,请解答下列问题:
关于
的函数关系式并注明自变量
的取值范围;
(2)在如图2所示的平面直角坐标系中画出
的图象,并写出该函数的一条性质;
(3)已知直线
的图象如图2所示,结合函数图象,直接写出当
时
的取值范围.(结果精确到
,误差
)
![](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/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/fe54685dbc823ee67221a6d2cbe704df.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21964475977d481f12d66d53b6695096.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)在如图2所示的平面直角坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06265df1538f300d7bad45c6ac58c6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457bca07560f57c6f9e8824aabf3039b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87796ee30e6c5d5e6b6285b32abe10c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4646418552dc060ebda1232361a01295.png)
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4 . 如图,在平面直角坐标系中,直线
与
轴、
轴分别交于点A、B,且与直线
相交于点
.直接写出
的解集( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7afafadb398ecee0bb0ea9cc90defbc.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/0f000cbc543005e2f88f45b5aef5c255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93464071996e24557b86a1ad3759f7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e3d059f4abb2d8221e4c14bf5bc4e5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
5 . 如图1,菱形
的周长为24,
,点G为对角线
上一点,且
.动点P从点O出发,沿
移动到点B时停止运动(点P不与点O、点B重合).设点P的运动路程为x,
的面积为y.
(1)直接写出y与x之间的函数关系式,并注明自变量x的取值范围:
(2)在图2的平面直角坐标系中画出y与x的函数图像,并写出该函数的一条性质;
(3)若
的函数图像如图2所示,结合你画出的y与x的函数图像,直接写出当
时,自变量x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8ceff7afec45baa273b1fe2152bbbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3542e0d9800387405e7bb944d101c72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c965f16192e57a8079a40a0304ef339b.png)
(1)直接写出y与x之间的函数关系式,并注明自变量x的取值范围:
(2)在图2的平面直角坐标系中画出y与x的函数图像,并写出该函数的一条性质;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17afa80eec52d5077259f8daf937f59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f2fecc7a159c8454885b5262356dc3.png)
您最近一年使用:0次
2024-06-08更新
|
324次组卷
|
2卷引用:重庆市凤鸣山中学教育集团校2023-2024学年八年级下学期期中考试数学试题
6 . 已知在平面直角坐标系中,直线
与直线
(
为常数)交于点
,若点
的横坐标为
,则关于
的不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c1212804e6d784756d48083d166e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13653a89d3a38346e1ddf4fd1602f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.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/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e92ed4a7a41bd614d8ce018546f3b76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 如图,一次函数
的图象经过点P,则关于x的不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebd2bdd10698c3fc9411e64d7223881.png)
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2024八年级下·全国·专题练习
8 . 在平面直角坐标系中,一次函数
的图象为直线
,在下列结论中:
①无论
取何值,直线
一定经过某个定点;
②过点
作
,垂足为
,则
的最大值是
;
③若
与
轴交于点
,与
轴交于点
,
为等腰三角形,则
;
④对于一次函数
,无论
取何值,始终有
,则
,
或
.
其中正确的是___ .(填写所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94ededd378c4858bb86c458a17d2f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
①无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf59107b1cb4f2c9dc9f27525311e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
④对于一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ae8cc2866afcc5a3d0b1250a3043cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8749eff2070fdbb481582643bc606c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6aeba88a67720f9b5a83a25701dc5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7114eb2305af5e5d426db9ece3fbbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffd554e0d91dd05b89937685fea98e9.png)
其中正确的是
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9 . 在平面直角坐标系
中,一次函数
的图象由函数
的图象平移得到,且经过点
.
(1)求这个一次函数的解析式以及与y轴的交点坐标;
(2)当
时,对于
的每一个值,函数
的值小于一次函数
的值,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e114459637a3db306e91b5e9ee9aae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc8350b12974ffc8d06fce36d158f02.png)
(1)求这个一次函数的解析式以及与y轴的交点坐标;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 如图,在平面直角坐标系中,一次函数
的图象经过
,且与
轴相交于点
,与一次函数
的图象相交于点
,点
的横坐标为4,
的表达式;
(2)直接写出关于
的不等式
的解集;
(3)设点
在直线
上,且
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b04116ea5a31d20c867bb199bd542c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b00c7d98aa59fe7e9b6001181ba542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694033aa4e20853cf10f33c870007047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(2)直接写出关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09155aeffc08662c895143e580c351ed.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633ad82c8b18405897d8f749e72ec682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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