阅读材料:材料一:对三个实数x、y、z,规定
表示x、y、z这三个数中最小的数,例如min{-1,2,3}=-1
材料二:m、n都是实数,且满足2m=n+8,则称点P(
,
)为“开心点”
例:点A(5,3),由
,则
,∵2×6=4+8,∴点A是“开心点”;
又例:点B(4,8),由
,则
,∵2×5≠14+8,∴点B不是“开心点”.
请解决下列问题:
(1)min{
}=________;
(2)若点T(
,
)是“开心点”,请求点T的坐标;
(3)若整数a满足min
=4,请判断点M(a,1)是否为“开心点”,并说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135c01592a330d1ddecd0996ac23e425.png)
材料二:m、n都是实数,且满足2m=n+8,则称点P(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e94f660b7d05de4be4b5fbd9041f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf584cd01a9faee3a7101e61327c538.png)
例:点A(5,3),由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf86ebd19adf61d006b3dd4cce2619e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418bba3fc2a81bebcf425f99529ae373.png)
又例:点B(4,8),由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312641dd21b86be325c7bcc4aed1cc61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1ac9001548088ef3ed3895da208a10.png)
请解决下列问题:
(1)min{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614a082a4d2fbfd722adb8465a16ae99.png)
(2)若点T(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8026dfb85e7f0b298fe9cf3cf670f5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125bf13d09d218a1797a2cbae6dbba76.png)
(3)若整数a满足min
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13044f927bf74dd29f3b75af4a085c68.png)
更新时间:2021-07-10 19:22:18
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解答题-作图题
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【推荐1】如图,已知
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(1)作出
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/210ab506-5925-4a81-bb79-3db644904471.png?resizew=281)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3637509fd0c15e93a697a1ecd4d41a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
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解答题-作图题
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/32d7ba88-5b95-4b48-a25f-b8074265ae56.png?resizew=300)
(1)请写出点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
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(1)请写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
(2)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ed6cbf3f2963a662c3a96a5628d1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ed6cbf3f2963a662c3a96a5628d1bc.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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