数轴上点A、B到原点的距离分别是1和3,则A、B两点间的距离是____________
更新时间:2022-10-27 08:29:14
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【知识点】 数轴上两点之间的距离解读
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(0.65)
【推荐1】数轴上,
和
所对应的点之间的距离是_________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
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填空题
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适中
(0.65)
【推荐2】如图,C为射线
上一点,
,
比
的
多5,
两点分别从
两点同时出发,分别以2个单位/秒和1个单位/秒的速度在射线
上沿
方向运动,当点P运动到点B时,两点同时停止运动,运动时间为
(s),M为
的中点,N为
的中点,以下结论:①
;②
;③当
时
;④M,N两点之间的距离是定值.其中正确的结论_____ (填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f325403cbedaac249c9a78d33da81a.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/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7777a27259d26724229b604df42656c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f184bd6978ee1cec1638045504796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0028d73e6f8a861ea5f97ef287367aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57127a1bae23a6d3a266ffae18601f62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/a5d19d04-f30a-4998-baf0-3c4bb9c2df55.png?resizew=277)
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