名校
1 . 如图,直线
与x轴交于点A,与y轴交于点B,直线
与x轴交于点C,与y轴交于D点,
.
的解析式;
(2)点Q为直线
上一动点,若有
,请求出Q点坐标;
(3)点M为直线
上一动点,点N为y轴上一备用图动点,是否存在以点M,N,C为顶点且以
为直角边的三角形是等腰直角三角形,若存在,请直接写出点M的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cbd7d3c0908a945f720d2cf7909079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f033116d4339886b5a5cabdd070dac09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
(2)点Q为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b1f7181fd509aab5083bf40d48dea3.png)
(3)点M为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
您最近一年使用:0次
2023-12-11更新
|
346次组卷
|
7卷引用:重庆市第八中学校2023-2024学年八年级上学期期中数学试题
重庆市第八中学校2023-2024学年八年级上学期期中数学试题广东省佛山市南海区桂城街道灯湖初级中学2023-2024学年八年级上学期第二次月考数学试题(已下线)猜题06 一次函数(拔尖必刷40题11种题型专项训练)-2023-2024学年八年级数学上学期期末考点大串讲(苏科版)江苏省苏州市昆山市昆山通海实验中学2023-2024学年八年级上学期12月月考数学试题甘肃省张掖市甘州区张掖育才中学2023-2024学年八年级上学期期末数学试题(已下线)专题19.24 一次函数(全章知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)江西省赣州市2023-2024学年八年级下学期期末数学试题
2 . 我们规定:在数轴上,若点M到点A的距离是2,则称点M为点A的“青春点”;若点N到点A、B的距离之和是5,则称点N为点A、B的“奋斗中心”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/20ea2e5b-a7ef-4676-81a6-e902d8944db5.png?resizew=282)
(1)若点A表示最大的负整数,则点A的“青春点”M表示的数是 ;
(2)如图1,点A表示的数是
,点B表示的数是2,若点N为点A、B的“奋斗中心”,求满足条件的点N所表示的整数的和;
(3)如图2,点A、B、N在数轴上表示的数分别是
、1、4,点P从点A出发,以2个单位/秒的速度沿数轴向右运动,同时点Q从点B出发,以1个单位/秒的速度沿数轴向右运动,求经过几秒点N是点P、Q的“奋斗中心”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/20ea2e5b-a7ef-4676-81a6-e902d8944db5.png?resizew=282)
(1)若点A表示最大的负整数,则点A的“青春点”M表示的数是 ;
(2)如图1,点A表示的数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
(3)如图2,点A、B、N在数轴上表示的数分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
您最近一年使用:0次
3 . 对于数轴上的
三点,给出如下定义:若其中一个点与其它两个点的距离恰好满足2倍的数量关系,则称该点是其它两个点的“祁美点”.
例如:数轴上点
所表示的数分别为1,3,4,此时点
是点
的“祁美点”.
(1)若点
表示数
,点
表示数
,点
是点
,
的“祁美点”,点
在
,
之间,且表示一个负数,则点
表示的数为______;
(2)若点
表示数
,点
表示数
,下列各数-1,0,1所对应的点分别为
,则点
的“祁美点”是 (填
或
或
)
(3)点
表示数
,点
表示的数
,
在为数轴上一个动点:
①若点
在点
的左侧,且点
是点
的“祁美点”,则此时点
表示的数是多少?
②若点
在点
的右侧,点
中,有一个点恰好是其它两个点的“祁美点”,则此时点
表示的数是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff76846660a607dae65b956967b4c2f4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/9e044694-bcbe-4aaf-a8a9-dfdac97e74e4.png?resizew=220)
例如:数轴上点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff76846660a607dae65b956967b4c2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b00c9499415c5801c64a8177f4b35e6.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/ac047e91852b91af639feec23a9598b2.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/ac047e91852b91af639feec23a9598b2.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4c537a5a0b3cb5e9f1f1cfe97b60b95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c33c8b0bb57a61e9faef1c866ef3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
4 . 请利用“数形结合”的数学方法解决下列问题:
(1)有理数
、
、
在数轴上的位置如图,化简:
.
(2)请你找出所有符合条件的整数
,使得
.
(3)若
、
为非负整数,且
,求
、
的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/3e0731c3-0d39-4a17-859d-be5726de3ca5.png?resizew=285)
(1)有理数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48081bd73b08b9621059d58f9f44a951.png)
(2)请你找出所有符合条件的整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a03ab4e7e2fa7a933b21b2bcff5a1b.png)
(3)若
![](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/bde6223c616abd98bd6b4a79f3839777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
5 . 如图,
,
两点在数轴上分别表示有理数
,
,且
,点
为原点,点
在数轴上
,
两点之间,且
.
(1)直接写出
______,
______,点
所对应的数是______;
(2)动点
从
点出发,以每秒1个单位长度的速度向左运动,同时动点
从
点出发,以每秒2个单位长度的速度向左运动,运动时间为t秒.
①若
,求
的值;
②若动点
同时从
点出发,以每秒4个单位长度的速度向右运动,与点
相遇后,动点
立即以同样的速度返回,当
为何值时,点
恰好是线段
的中点.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4713890a835356987299cfa0d534819c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4be5bad87ef514f14773840777d7b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/24/a8c5791b-ab07-415b-b76c-cac86d54a53d.png?resizew=165)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc23a6b450dff7575c18ee84e9a4df22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
6 . 对于有理数
,
,
,
,若
,则称
和
关于
的“明德值”为
.例如,
,则2和3关于1的“明德值”为3.
(1)
和3关于1的“明德值”为________;
(2)若
和2关于1的“明德值”为3,求
的值;
(3)若
和
关于1的“明德值”为1,
和
关于2的“明德值”为1,
和
关于3的“明德值”为1,
,
和
关于50的“明德值”为1,求
的值.(用含
的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd84741719a22af5ac3d671af99fb812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fbba19405d71c259852344e314fa41.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812bec941977e59a7876f9658080435a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfce7a88a7bf35de6a85fb20b56be8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc5944a739d6d6ba897c41a4ab414b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
您最近一年使用:0次
7 . 观察、理解与应用.如图,在数轴上
所对应的点为:
,
,1,3,其中
点在原点处.
(1)
两点间的距离
__________,
两点间的距离
__________;
(2)数轴上有两点
,点
对应的数为
,点
对应的数为
,那么
两点间的距离
__________;
(3)应用:若动点
,
分别从点
处同时出发,沿数轴负方向运动;已知点
的速度是每秒1个单位长度,点
的速度是每秒2个单位长度,设运动时间为
,问:①当
为何值时,
、
两点重合?②
为何值时,
,
两点之间的距离为1?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4496fe22b40bc63581998e6b7ef6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ce3ebd1112220c639562739f1f9d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/8eafb7ab-21c3-455c-8bf8-f379e2009e66.png?resizew=286)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
(2)数轴上有两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.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/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
(3)应用: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/da6b93dbe5272a5167ff4e2918bec864.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/36a1b09c653185842513e24ebba60bb3.png)
![](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)
![](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)
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名校
8 . 对于数轴上的点A,给出如下定义:点A在数轴上移动,沿负方向移动
个单位长度(r是正数)后所在位置点表示的数是
,沿正方向移动
个单位长度(
是正数)后所在位置点表示的数是
与
这两个数叫做“点A的
对称数”,记作
,其中
.例如:原点
表示0,原点
的1对称数是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057eb3c409ecf1ddf06b61a181ac0f04.png)
(1)若点A表示
,请直接写出点A的3对称数.
(2)若
,求点A表示的数和
的值.
(3)若点A表示
,求
的值.
(4)已知
,若点A、点
从原点同时同向出发,且点A的速度是点
速度的2倍,是否存在点A,使数轴上表示
的点与表示
的点之间的距离是数轴上表示
的点与表示
的点之间的距离的2倍,存在,请求出点A表示的数,不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ed7c756c9faa9b9d11255e26065444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b337670cf636d11866029310683ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5abe56c019ac914e1fcde1865a747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057eb3c409ecf1ddf06b61a181ac0f04.png)
(1)若点A表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175c0077beecf178044081e662a2b3da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ccd944ff169d8b6bed4ab2411e19c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(3)若点A表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f7a31bf9147d44611a124d9c71b357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aca62f6bf3213041b6ab964dd5f84fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 已知多项式
是关于
的二次多项式,且二次项系数为
,数轴上两点
,
对应的数分别为
,
.
(1)
________,
________,线段
________;
(2)若点
与点
之间的距离表示为
,点
与点
之间的距离表示为
.请在数轴上找一点
,使
,则
点表示的数是多少?
(3)在(2)的条件下,若点C在线段
上,动点P从点C出发,以3个单位长度/秒速度由C向B的方向运动;同一时刻,另一动点Q从点B出发,以1个单位长度/秒速度向正方向运动,设动点P的运动时间为t秒.当动点P、Q两点相距为8个单位长度时,求此时t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88eb7f7cbc6b9f3870a2f426da13af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/edc3e457-649b-4dd2-8482-f46414433957.png?resizew=465)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3128a88bb559e5166b54e7250bb5c083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)在(2)的条件下,若点C在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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10 . 如图,已知
,
是一次函数
与反比例函数
(
)图象的两个交点,
轴于C,
轴于D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/2bcbb322-f31a-4a7b-8791-cf97a2926a85.jpg?resizew=158)
(1)求一次函数解析式及m的值;
(2)在双曲线(
)上是否存在一点P,使
和
面积相等,若存在,求出点P坐标,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13a56302f005b9fe3f867819813acc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e97884df73e14a5936b4c46b9936889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d573351f8fb2347a597fac2af2f1a28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2241bd71e0c20867029e489f9ba655d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de7fcbcb1ef0134d70156bb19852ca5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/2bcbb322-f31a-4a7b-8791-cf97a2926a85.jpg?resizew=158)
(1)求一次函数解析式及m的值;
(2)在双曲线(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac779b70bd71ae3a77721efb04c62b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bb4ef08f6070a6bbc54ea9c4f130d5.png)
您最近一年使用:0次