如图1,E是正方形
的边
上一点(不与点B,C重合),连接
,以
为边向右作正方形
,连接
.已知
的面积(S)与
的长(x)之间的函数关系如图2所示,若该抛物线顶点P的纵坐标为8,则正方形
的边长为______ .
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更新时间:2023-11-23 17:24:27
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【推荐1】用一块长方形的铁片,把它的四个角各自剪去一个边长是4cm的小方块,然后把四边折起来做成一个没有盖的盒子,已知铁片的长是宽的2倍,则盒子的容积y(cm3)与铁片宽x(cm)的函数关系式为________ .
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【推荐2】现有一“祥云”零件剖面图,如图所示,它由一个半圆和左右两支抛物线的一部分组成,且关于y轴对称.其中半圆交y轴于点E,直径
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【推荐1】如图,在
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