1 . 在平面直角坐标系
中,点
、
、
,其中点
在点
左侧.连接
,
,若在
、
、
所围成的区域内(含边界),横坐标和纵坐标都为整数的点的个数为6,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5612d598e27ac2ce0ab89fb63538bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5f9b2f698b39d21339041617a54bf6.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 下列数轴上,正确表示不等式
的解集的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4dcb1ce05d3e2a22bed6dc2e57aa5f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:北京市密云区2022—2023学年七年级下学期期末数学试题
3 . 不等式
的解集在数轴上表示为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1682c7290e4d06a3da703af274d11d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 下面是小明解不等式
的过程,请把它补充完整:
解:去分母得
.
去括号,得___________.
移项,得___________.
合并同类项,得___________.
系数化1,得
___________.(填依据:___________)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5faa40e586a188530acd8dadfce2cf4e.png)
解:去分母得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274dac87c4ae95d1c37fb6f815694639.png)
去括号,得___________.
移项,得___________.
合并同类项,得___________.
系数化1,得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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5 . 已知关于
的不等式
的解集是
,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7646b331b458cbd3ae08b6502f79c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2卷引用:北京市顺义区2022—2023学年七年级下学期期末数学试题
名校
6 . 先阅读绝对值不等式
和
的解法,再解答问题.
①因为
,从数轴上(如图1)可以看出只有大于
而小于6的数的绝对值小于6,所以
的解集为
.
②因为
,从数轴上(如图2)可以看出只有小于
的数和大于6的数的绝对值大于6.所以
的解集为
或
.
的解集为___________,
的解集为___________;
(2)已知关于
的二元一次方程组
的解满足
,其中
是负整数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b454b8b3f459860af98694ae9f457f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447da6decdb1d2a838dfffae692c99b3.png)
①因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b454b8b3f459860af98694ae9f457f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b454b8b3f459860af98694ae9f457f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a36ac208c39ad4f210d51157cffe5d.png)
②因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447da6decdb1d2a838dfffae692c99b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447da6decdb1d2a838dfffae692c99b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f3fbf3d1a9dc34ca087553710fe838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb595535eaefe630a624adc02b713fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2671a54305f2aedce64f0d015c2fcaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64bf4664d708e576c50f544ddf3a7d67.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df37a7b5cac108b08e04735dba9be7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9efde2904b13f52ba006efecfb14f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
7 . 解不等式
,并把解集在数轴上表示.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad139e0ad870a7243e47b6f53e53a20.png)
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名校
8 . 如果关于
的不等式
的解集为
,则
的值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e618ef75edf6a8c5fd34d418ad079c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e109d31afb394e01c438eaacb8fa3e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-07-06更新
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393次组卷
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3卷引用:北京市东城区北京市第二中学2022-2023学年七年级下学期期末数学试题
北京市东城区北京市第二中学2022-2023学年七年级下学期期末数学试题北京市顺义区仁和中学2023-2024学年七年级下学期期中数学试题(已下线)专题08 不等式与不等式组【七大题型】-【好题汇编】备战2023-2024学年七年级数学下学期期末真题分类汇编(北京专用)
9 . 解不等式
,并在数轴上表示解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee90e4b4278ce7698ece6e05a80182a6.png)
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名校
10 . 对于平面直角坐标系xOy中的点
和图形G,给出如下定义:将图形G向右
或向左
平移
个单位长度,再向上
或向下
平移
个单位长度,得到图形
,称图形
为图形G关于点M的“伴随图形”.
.
①若点
,点
为点E关于点M的“伴随图形”,则点
的坐标为______;
②若点
,点
为点T关于点M的“伴随图形”,且点
在第一象限,求t的取值范围;
(2)如图2,
,
,
,
,图形H是正方形
关于点M的“伴随图形”.当图形H只在第一或第四象限,且与正方形
有公共点时,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465a56c906fba99ade616775f37cb8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396f2055f52c0c2ce16a6d456df2ae51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b151b08d8f44689da58500dfe9a90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3989d38e19836215cbc7c31868eee472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce22731a412796fe2925e01f765d5976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81722445de00f3cfcc3cb97e45b0d8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81722445de00f3cfcc3cb97e45b0d8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e584f799ea554fc5533925ead4672501.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5b6926cdb99eb58070b8720718f71a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d924a8f3d97d09c5f82cd639dc8d485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e01c77ea8aec0f14e3e6c37ed374cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e01c77ea8aec0f14e3e6c37ed374cda.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f89b18f69812fb34fd1290e2f1b36aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9194ae9aab90548e433bf0f4748ceb70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5bdf7cb8958e92e750646138ef6b3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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2卷引用:北京市丰台区2022-2023学年七年级下学期期末数学试题