在平面直角坐标系xOy中,当m,n满足mn=k(k为常数,且m>0,n>0)时,就称点(m,n)为“等积点”.若直线y=﹣x+b(b>0)与x轴、y轴分别交于点A和点B,并且该直线上有且只有一个“等积点”,过点A与y轴平行的直线和过点B与x轴平行的直线交于点C,点E是直线AC上的“等积点”,点F是直线BC上的“等积点”,若△OEF的面积为
,则OE=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea48815f6585de149f4797119eea91a.png)
18-19九年级下·四川成都·阶段练习 查看更多[3]
四川省成都天府新区2018-2019学年九年级下学期学业质量监测数学试题2019年四川省成都市天府新区中考数学一模试题(已下线)第一章 一元二次方程单元检测卷(难)-2021-2022学年苏科版九年级数学上册同步单元检测
更新时间:2020-04-01 19:11:48
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【推荐1】若关于
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【推荐2】定义:等腰三角形底边与腰的比叫做顶角
的正对(
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【推荐1】如图,已知正比例函数
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【推荐2】如图,一次函数
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