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二次函数是初中数学重要内容,在初学时学生会由于概念不清、思考不周、对二次函数图象及性质不清,而遇到相关问题感到茫然,导致错误。现对二次函数的典型易错题型进行举例,以引起同学们注意。一、概念不清,忽视二次项系数a。
Quadratic function is an important part of junior high school mathematics. Students will feel confused when confronted with related problems due to unclear concepts and poor thinking during the first grade. Now the typical error-prone quadratic function for example, to arouse the students attention. First, the concept is unclear, ignoring the quadratic coefficient a.