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斜率相加等于0说明什么
更新时间: 2021-01-24 07:26:45  

1、即两条直线的斜率互为相反数,①斜率为0,与x轴平行或重合,②斜率不为0,两条直线关于直线x=a,y=b,点(a,b)对称,其中(a,b)是两直线交点。

2、特别地,如果两条直线相交于原点,则它们关于x轴,y轴,坐标原点对称。

关键词: 斜率 相加 等于 说明 什么

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