与三条直线相切的抛物线
2014-09-16 15:35
本范例演示如何构造一条同时与三条给定直线（X轴、y=x-1、y=-x-1）相切的抛物线。通过GeoGebra的交点、镜像、直线和抛物线等命令，展示解析几何中抛物线与直线相切的条件与几何作图方法，帮助理解二次曲线与直线的切线关系及抛物线的几何性质。
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