在数轴上,点A,B在原点O的两侧,分别表示数a,1,将点A向右平移2个单位长度,得到点C,若CO=BO,则a的值为( )
A.1 | B.-1 | C.-2 | D.-3 |
2021·山东临沂·一模 查看更多[1]
更新时间:2022-02-25 13:35:34
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【推荐1】如图,
,
,
,
分别是数轴上四个整数所对应的点,其中有一点是原点,并且
.数
对应的点
在
与
之间,数
对应的点
在
与
之间,若
,则原点是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/26b6c868-611b-41c7-b9cd-ded53d9a9211.png?resizew=218)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1307afcb6315b2ca79792ad73b7e1fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15c4d5d8a3f7ee6d3425b37b608eb84.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/26b6c868-611b-41c7-b9cd-ded53d9a9211.png?resizew=218)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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【推荐2】下列说法正确的有( )
①
的相反数是
②所有的有理数都能用数轴上的点表示
③若有理数
,则
互为相反数 ④
的绝对值等于它的相反数
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
③若有理数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9cdea1e995c59e5d3225acad8b4d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】如图,点A、B、C、O在数轴上,其中O为原点,且
,若点B表示的数为b,则点C表示的数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14c633984a288b924ce63ba5ae7a09f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/8e80689e-414c-4cbb-89ed-e00d7c145fc1.png?resizew=124)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】已知数轴上的
两点到原点的距离相等,且
,则点
表示的数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1051ef731f266dbf72ccb19dc222bf2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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