1 . 已知一次函数
(k、b为常数,且
)的图象(如图1).
(1)
________,
________;
(2)正比例函数
(m为常数,且
)与一次函数
相交于点P(如图2),则不等式
的解集为________:不等式组
的解集为________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/418dd278-c61f-47cd-a875-fe4f1e1c858a.png?resizew=242)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)正比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa2d4a88278b0f4c7facdc95e661c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c711b4d54956709bc1f03abed26a34.png)
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2023-06-09更新
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3卷引用:广东省茂名市崇文学校2022-2023学年八年级下学期期中数学试题
名校
2 . 在平面直角坐标系中,一次函数
与
的图象交于点
,且不等式
的解集为
,则k,b的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e091cface0c4a22727634eb480562d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82388095a4e6d9decccae2b24fe28138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/805e49ab4238a46b02668a63500ecb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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3 . 小云同学根据函数的学习经验,对函数
进行探究,在如图所示的平面直角坐标系中已画出函数
在
时的图象,且已知:当
时,函数
的图象经过点
和
.
(1)请你根据已知条件,在平面直角坐标系中,画出当
时函数
的图象;
(2)观察函数
的图象,下列关于函数
的三个性质描述正确的有:________;(填写序号)
①当
时,
随
的增大而增大;
②当
时,
随
的增大而减小;
③当
时,函数
取到最大值为4.
(3)若函数
的图象与函数
的图象有交点,求出常数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d102731308892eba81f569fff5cf9077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07468e723520c9ad690a8472d0529b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/01ad98b4-29d8-49a0-aa2d-56a506dfffc1.png?resizew=387)
(1)请你根据已知条件,在平面直角坐标系中,画出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)观察函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07468e723520c9ad690a8472d0529b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003eaa8cf3294352258fbe2c9ba3a5cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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4 . 一次函数
与
的图象如图所示,则
的解集是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/fbaf20fe-23c5-40d0-bfbf-b00b514d6873.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b470a3339f9b59e86b70d0e81aab92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34e1db9d9a463b15ae6590315ca1df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/fbaf20fe-23c5-40d0-bfbf-b00b514d6873.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 请在平面直角坐标系中画出
的图象,然后解答下列问题:
(1)不等式
的解集是___________ ;
(2)二元一次方程组
的解是___________ ;
(3)当
取何值时,
?你是怎么做的?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479a34fca7e4e45aa6adc28ed967bf8b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/cb8451cf-f610-48b8-871c-c2bac15ce63c.png?resizew=162)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d565f1adc4484f41181f9fecc86aeba.png)
(2)二元一次方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0afa237b0ab53d5aec053af43e462b6.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
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名校
6 . 如图,直线
与
相交于点P,点P的坐标为
,则关于
的不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c1972246a0a3d1c987d25205dbdd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bad9a4a9365dc43f23c27b9a64426a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8116b930741001710c6b9c3479b8c07.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/6/630652b1-1356-4671-b8ed-1b71d6440aca.png?resizew=184)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知,一次函数
(
,k,b为常数)的图象如图1,在图2中正比例函数
(
,m是常数)的图象与一次函数
的图象交于点
,
(1)观察图象(图1),写出方程
的解和不等式
的解集.
(2)观察图象(图2),把不等式组:
中两个不等式的解集表示在同一数轴上,并最终确定该不等式组的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)观察图象(图1),写出方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c8dfa0fb17907bb65f5906fe342e3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215157819d75bba781d1654d87e80aa9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/a4fd7101-9c13-4db2-b84b-4ac0712fa199.png?resizew=157)
(2)观察图象(图2),把不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c711b4d54956709bc1f03abed26a34.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/bbfdb6ed-8c96-4dc2-b8cc-91f861f28f32.png?resizew=157)
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名校
8 . 已知,一次函数
和
的图像交于点
,且直线
交
轴于点
.则
的解集( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a13cf2a12cfc199f9321193994083d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d596ea8abbf1a41b55bc8e74c81f4473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ceec39aaaccbeaac9a4a5bdbb0f0e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a13cf2a12cfc199f9321193994083d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27539262af1b2f9f958a6f1ec1c702ad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/0ae41f00-f29b-4581-a799-efe696847b56.png?resizew=153)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-06-07更新
|
385次组卷
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2卷引用:河南省平顶山市舞钢市2022-2023学年八年级下学期期中数学试题
名校
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/d1f0ecd57fb51f436c72e478ef511c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a67260be97cca75002f4814d1b0418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37e2d6701b4d5e7485fba59450bde14.png)
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2023-06-07更新
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854次组卷
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12卷引用:广东省梅州市丰顺县2022-2023学年八年级下学期期中数学试卷
广东省梅州市丰顺县2022-2023学年八年级下学期期中数学试卷广东省茂名市电白区岭门中学2022-2023学年八年级下学期期中数学试题山东省枣庄市峄城区2022-2023学年八年级下学期期末数学试题广东省梅州市大埔县三河中学2022-2023学年八年级下学期期中数学试题陕西省西安市碑林区西北工大附中2022-2023学年八年级下学期期中数学试题陕西省西安工业大学附属中学2022-2023学年八年级下学期期中数学试题重庆市第八中学校2023-2024学年八年级下学期期中数学试题陕西省西安市铁一中学2023-2024学年八年级下学期期中数学试题海南省琼海市嘉积中学2023-2024学年八年级下学期期中考试数学试题B卷内蒙古自治区包头市青山区2023-2024学年八年级下学期期中数学试题重庆市南岸区四校联考2023-2024学年八年级下学期期中数学试题辽宁省沈阳市法库县2023-2024学年八年级下学期期中数学试题
10 . 如图,已知直线
与
相交于点
,则关于x的不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73801c38ac23a0776ec3f627c7a85fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d340cebcbaa3259533c032defa81d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9585db02dc2bc7999982e78decbfd73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/bc04eee3-9a31-41f6-a540-795a2e2f478d.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
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