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抛物线的定义与标准方程

中职数学（拓展模块）精品课程. 抛物线的定义与标准方程. 青阳县职教中心数学组. （一）抛物线的定义. 平面内与一个定点和一条定直线的距离相等的点的集合 ( 或轨迹 ) 叫做抛物线。定点叫做抛物线的 焦点 ，定直线叫做抛物线的 准线。. （四）练习： P.43 第 1 、 2 题. （五）小结：主要内容是 ①抛物线的定义； ②抛物线的标准方程的四种形式。. （六）作业： P.46 习题第 1 、 2 题。.

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抛物线的定义与标准方程

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  1. 中职数学（拓展模块）精品课程 抛物线的定义与标准方程 青阳县职教中心数学组

  2. （一）抛物线的定义 平面内与一个定点和一条定直线的距离相等的点的集合(或轨迹)叫做抛物线。定点叫做抛物线的焦点，定直线叫做抛物线的准线。

  3. （四）练习：P.43 第1、2题 （五）小结：主要内容是 ①抛物线的定义； ②抛物线的标准方程的四种形式。 （六）作业：P.46 习题第1、2题。

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