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1 . 对于一个具有正南正北、正东正西方向规则布局的城镇街道,从一点到另一点的距离是在南北方向上行进的距离加上在东西方向上行进的距离,这种距离即“曼哈顿距离”,也叫“出租车距离”.对于平面直角坐标系中的点
和
,两点间的“曼哈顿距离”
.
![](https://img.xkw.com/dksih/QBM/2020/1/14/2377014263767040/2378135585849344/STEM/d219004af9bc4b3fb57e9340e0b9e6bd.png?resizew=302)
(1)如图,若
为坐标原点,
,
两点坐标分别为
和
,求
,
,
;
(2)若点
满足
,试在图中画出点
的轨迹,并求该轨迹所围成图形的面积;
(3)已知函数
,试在
图象上找一点
,使得
最小,并求出此时点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec391f08f1452fb3e0aebe7e12ba4fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a4422395ca20fe847419ec569e48b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2990ee12e0c3496230b9b2fd05c3786.png)
![](https://img.xkw.com/dksih/QBM/2020/1/14/2377014263767040/2378135585849344/STEM/d219004af9bc4b3fb57e9340e0b9e6bd.png?resizew=302)
(1)如图,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/2be3ad3dd6803d92df6ff8a80cd35095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5861c3ef04ab002d3b6b50cbc81eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4308859a0c4ade94bd0f05a7ddfe304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59baffb3f64c86b73b8348221ecab85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4a2681390214200443ae07c01a4abe.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3986099b1753e48e05ebcbdf8e2f02cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc4a9189929067c48238ca4c5c61e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ecb9decb8e10f36b3ac6a6e1f2d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2020-01-16更新
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415次组卷
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2卷引用:广东省东莞市2019—2020学年高一上学期期末数学试题