【类比学习】一动点沿着数轴向右平移3个单位,再向左平移2个单位,相当于向右平移1个单位.用有理数加法表示为
.
若坐标平面上的点做如下平移:沿
轴方向平移的数量为
(向右为正,向左为负,平移
个单位),沿y轴方向平移的数量为
(向上为正,向下为负,平移
个单位,则把有序数对
叫做这一平移的“平移量”;“平移量”
与“平移量”
的加法运算法则为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f263269af95fe7f9017069240b61b76.png)
【解决问题】![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76e0b5d803ead8a2a0a91a652c7ad2d.png)
______ .
(2)动点
从坐标原点
出发,先按照“平移量”
平移到
,再按照“平移量”
平移到
;若先把动点
按照“平移量”
平移到
,再按照“平移量”
平移,在图1中标出点A、B、C,并画出四边形
.
(3)如图2,一般船从码头O出发,先航行到湖心岛码头
,再从码头
航行到码头
.用“平移量”加法算式表示它的航行过程为:______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32632913d14d9418b296de34dde5d3f6.png)
若坐标平面上的点做如下平移:沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058315922cc0ae811d323920f7494219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10a72461b1845357cada40904fe8a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bac3dd0daa7c3296f94f4cb7411deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f689253c4f8869b6946fa6e3c930f5ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7ab1f1a9c25a48d244b90c005d2400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f263269af95fe7f9017069240b61b76.png)
【解决问题】
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76e0b5d803ead8a2a0a91a652c7ad2d.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fd17c4f9ad0fe473ef203161fc767f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693b334b6467d7f1037bb8960e057b7a.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/693b334b6467d7f1037bb8960e057b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fd17c4f9ad0fe473ef203161fc767f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
(3)如图2,一般船从码头O出发,先航行到湖心岛码头
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b337c32bd5408c0ed8a9ee9cde4cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c94554d2c4d3978ceab35dfaf9c5e8.png)
更新时间:2024-05-04 16:11:16
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名校
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