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二次函数的系数是二次函数基础知识的组成部分,是确定抛物线的开口方向和位置的基本条件,是研究二次函数图象性质的依据,为中考命题的基本内容.本文例举二次函数系数的命题角度.
The coefficient of the quadratic function is an integral part of the basic knowledge of the quadratic function and is the basic condition for determining the opening direction and position of the parabola. It is the basis for studying the nature of the quadratic function image and is the basic content of the proposition. Propositional angle of function coefficient.