名校
1 . 在平面直角坐标系
中,直线
与y轴交于点A.
(1)求点A的坐标;
(2)将点A向右平移2个单位恰好落在直线
上,点
在直线
上,点
在直线
上.若
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e091cface0c4a22727634eb480562d6.png)
(1)求点A的坐标;
(2)将点A向右平移2个单位恰好落在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9db6ebe391887fccaf3916e9f57cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a574b4e5adc18b94c22822cf1d0b3b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e091cface0c4a22727634eb480562d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c15128e216c7682ca3344e3219ed38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9db6ebe391887fccaf3916e9f57cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421a7d6f54bf58a7a4f4ce61e06aefa9.png)
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名校
2 . 已知实数
满足
,
,
,对于每一个
,
都取
、
中的较大值.若
的最小值是
,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81e95c69528974a6bcb3b9eace8cf02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b927dfb4506976cbf2ab941442be8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bbdcf32c45872d3a16c05c61f5ed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad82fa37dff30a4c54465ff7ef9f7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
3 . 在平面直角坐标系中,一次函数
的图象平行于直线
,且经过点
.
(1)求这个一次函数的表达式;
(2)当
时,对于
的每一个值,一次函数
的值都大于一次函数
的值,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d501afbd7542f2f724b658edf39af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6414faca343d19a90639b1d22b6f0b7.png)
(1)求这个一次函数的表达式;
(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/c5d501afbd7542f2f724b658edf39af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d31d3dffb55d744c8078ab73e1567c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-10-14更新
|
225次组卷
|
3卷引用:2022年北京市人大附中分校中考模拟数学试题
4 . 一次函数
与
的图象如图所示,下列说法:
①对于函数
来说,y随x的增大而减小;
②函数
的图象不经过第一象限;
③不等式
的解集是
;
④
.
其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715416015a9634f5eafe3d399987d837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d11983799c973e41ae27f5f2851195f.png)
①对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715416015a9634f5eafe3d399987d837.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ac52af992b67494b11c6540d24c0f5.png)
③不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd64348d2a108cd8d63e225b3454562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c52bd64e51fb96482c8afdd89f142a.png)
其中正确的有( )
A.①② | B.②③④ | C.①②④ | D.②③ |
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5 . 如图,函数
和函数
的图象交于点P,根据图象可得,关于x的不等式
的解为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ec6b7a851dcdb3c4270e84ee453b56.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/11/c1c841e8-68ca-4f24-9b5a-f1d4bb068db7.png?resizew=215)
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6 . 已知一次函数
与一次函数
.
(1)若直线
与直线
交于点
,且函数
的值随x值的增大而减小,求m的取值范围;
(2)一次函数
的图像与x轴交于正半轴,对于一次函数
,若对于任意实数x都有
﹐则求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eac2c750c29eb653f61e0ee25ae21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e7de02e18861ee0e341a44efa885d1.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8f77e3876694978a22975eff397375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eac2c750c29eb653f61e0ee25ae21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eac2c750c29eb653f61e0ee25ae21a.png)
(2)一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eac2c750c29eb653f61e0ee25ae21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e7de02e18861ee0e341a44efa885d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
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7 . 如图,直线
的解析式为
,直线
与
轴交于点D,直线
与x轴交于点A,且经过点B,直线
,
交于点
.求:
![](https://img.xkw.com/dksih/QBM/2023/10/12/3344328435384320/3344526487273472/STEM/4d8deb89261c44158404024e0f1d64e0.png?resizew=147)
(1)求m的值;
(2)求直线
的解析式;
(3)根据图像,直接写出
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30fd97fafb3779aa4f4660f41e2939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a01e2e3d40112fdeeb464f81eaac1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5137db135f70ea9ac92cc8969821fd.png)
![](https://img.xkw.com/dksih/QBM/2023/10/12/3344328435384320/3344526487273472/STEM/4d8deb89261c44158404024e0f1d64e0.png?resizew=147)
(1)求m的值;
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(3)根据图像,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac71f731766fe7e9175f51c5c1bacaf.png)
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8 . 一次函数
(a为常数,且
).
(1)若点
在一次函数
的图象上,求a的值;
(2)若当
时,函数有最大值M,最小值N,且
,求出此时一次函数
的表达式;
(3)对于一次函数
,若对任意实数
都成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59f1422f5f203ff449ea33ec9a6cb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269f4e0c1e7f6e3b3f6df737017d1667.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7e88b74f492f89e21e4cf65353bdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59f1422f5f203ff449ea33ec9a6cb91.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2198978baa5a994212ecd40c2a6ad351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7877661eb8ac499409dba7f68766be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)对于一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d71de3b518276a263967bd2cb1258f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39ea8a63670df937a46a89baef83ed2.png)
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9 . 直线
:
与直线
:
在同一平面直角坐标系中的图象如图所示,则关于x的不等式
的解集为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3de82c715bf643d52df14def5ab0c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f8af9ce5d927e6f422de42ead6ffb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6701060c946502219d872a544cec61a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/10/fd75335f-a748-4abd-99d1-ac86f0e6fb64.png?resizew=130)
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10 . 如图,已知函数
和
的图像交点为P,则不等式
的解集为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18b1b57bcabd7599be74f70e149f6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8986bfb4209a5d006003f2ef31edd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c72da7426bb2fe00ed99ea17dc4902b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/11/b8e4dbe8-d8e6-4aa1-857e-d15ae2a81c5d.jpg?resizew=153)
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