如图,已知点
,
,
在数轴上对应的数分别为:
,1,3.5;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/e4dbf1c9-0a51-4033-813d-6d7457a5c1aa.png?resizew=310)
(1)
,
两点间距离=___________;
,
两点间距离=___________;
(2)数轴上有两点
,
,点
对应的数为
,点
对应的数为
,那么
,
两点之间的距离=___________;
(3)若动点
,
分别从点
,
同时出发,沿数轴正方向运动,已知点
的速度是每秒3个单位长度,点
的速度是每秒1个单位长度,问:
①当
为何值时
,
两点重合?
②当
为何值时,点
和点
之间的距离等于2?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/e4dbf1c9-0a51-4033-813d-6d7457a5c1aa.png?resizew=310)
(1)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)数轴上有两点
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/acc290b44635265137fdf13146b6a6d9.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
更新时间:2023-01-05 16:25:05
|
相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】已知在纸面上画有一数轴,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/e0bcfae7-e40b-4352-9222-90f0ffb3b3bd.png?resizew=456)
(1)折叠纸面,使表示1的点与表示-1的点重合,则表示-3的点与表示 的点重合;(直接写出答案)
(2)折叠纸面,使表示-1的点与表示3的点重合,则表示100的点与表示数 的点重合;(直接写出答案)
(3)已知在数轴上点A表示的数是a,将点A移动10个单位得到点B,此时点B表示的数和a是互为相反数,求a的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/e0bcfae7-e40b-4352-9222-90f0ffb3b3bd.png?resizew=456)
(1)折叠纸面,使表示1的点与表示-1的点重合,则表示-3的点与表示 的点重合;(直接写出答案)
(2)折叠纸面,使表示-1的点与表示3的点重合,则表示100的点与表示数 的点重合;(直接写出答案)
(3)已知在数轴上点A表示的数是a,将点A移动10个单位得到点B,此时点B表示的数和a是互为相反数,求a的值.
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名校
【推荐2】若
>0,
<0,
>
,用“<”号连接
,
,
,-
,请结合数轴解答.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d90e816cf52fc91a9d65f305f9bd379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a771f2e80c8a29ed2ebd76498b0f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d90e816cf52fc91a9d65f305f9bd379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】如图,已知数轴上点
表示的数为
,
是数轴上在
左侧的一点,且
,
两点间的距离为
,动点
从点
出发,以每秒
个单位长度的速度沿数轴向左匀速运动,设运动时间为
秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/afd34ec2-b3f6-4f5a-a692-fcd2d55eb117.png?resizew=299)
(1)数轴上点
表示的数是________,点
表示的数是________(用含
的代数式表示);
(2)动点
从点
出发,以每秒
个单位长度的速度沿数轴向左匀速运动,若点
、
同时出发.求:
①当点
运动多少秒时,点
与点
相遇?
②当点
运动多少秒时,点
与点
间的距离为
个单位长度?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a33482b5c998fe8741c0a6ce12ad73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/afd34ec2-b3f6-4f5a-a692-fcd2d55eb117.png?resizew=299)
(1)数轴上点
![](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/36a1b09c653185842513e24ebba60bb3.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
②当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
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【推荐2】阅读理解:
例1.解方程
,因为在数轴上到原点的距离为2的点对应的数为
,所以方程
的解为
.
例2.解不等式
,在数轴上找出
的解(如图),因为在数轴上到1对应的点的距离等于2的点对应的数为
或3,所以方程
的解为
或
,因此不等式
的解集为
或
.
参考阅读材料,解答下列问题:
(1)方程
的解为________
(2)解不等式:
.
(3)解不等式:
.
例1.解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e23117608becdb000a9812d7fe9821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b8bee40319fe80e512d221cfe252a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e23117608becdb000a9812d7fe9821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e88a7f9f2d8040d8451f06292200966.png)
例2.解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f7c6d752d770babee942434e1e5e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015bb51577c2c3c63d40e5b3f0ed5b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015bb51577c2c3c63d40e5b3f0ed5b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f7c6d752d770babee942434e1e5e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da6d82d173ad18cc040e94c925b5ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/039ae46b-2b5e-49ec-b77e-65c7f196c0fb.png?resizew=350)
参考阅读材料,解答下列问题:
(1)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342e44ab6b4cb9a16afa2804fad04d21.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f223b8402b00138ff51ca20db54bb87.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e75f67b762010dead0757ac9dfa0f32.png)
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【推荐1】如图,直线
与EF相交于点O,
,将一直角三角尺
(含
和
)的直角顶点与O重合,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/d59e962c-7e36-442f-a3af-e482240b3f5f.png?resizew=186)
(1)求
的度数;
(2)图中互余的角有 对;
(3)将三角尺
以每秒
的速度绕点O顺时针旋转,同时直线
以每秒
的速度绕点O顺时针旋转,设运动时间为
.
①当t为何值时,直线
平分
.
②当
时,直线
平分
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe40d5ee73dca0507829bd98ef8b6d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/d59e962c-7e36-442f-a3af-e482240b3f5f.png?resizew=186)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
(2)图中互余的角有 对;
(3)将三角尺
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654c79a470d5af5e0a34fd9233da5118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1954b1c8c580c968c2191ff0544155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b7e0fec7cbca60d42c48a8747b1504.png)
①当t为何值时,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
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【推荐2】将一副三角板的其中两个顶点重合于一点O,含45°角的三角板保持不动,含60°的三角板绕着点O旋转,
始终在
内部,请回答问题:
(1)如图1放置,将含有60°角的一边与45°角的一边重合时,求
的度数.
(2)绕着点O转动三角板
,当
恰好平分
时,求
的度数.
(3)三角板
在转动过程中
的度数恰好等于
度数的3倍,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/22/794cf637-cfe9-472f-bfaf-3d3e00e77b95.png?resizew=248)
(1)如图1放置,将含有60°角的一边与45°角的一边重合时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
(2)绕着点O转动三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
(3)三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
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