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二次函数作为最基本的初等函数之一,以它为代表来研究函数的性质,可以建立起函数、方程、不等式之间的联系,可以编拟出层出不穷、灵活多变的数学问题,这些数学问题可以考查学生的数学基础知识和数学综合能力,而且可以培养学生分类讨论、数形结合的重要数学思想,所以二次函数在中职数学中有很重要的作用。
As one of the most basic elementary functions, the quadratic function can be used to study the properties of the functions represented by it. It can establish the connection between functions, equations and inequalities, and can formulate an endless stream of mathematical problems that are flexible and changeable. These mathematical The problem can examine the student’s basic knowledge of mathematics and math comprehensive ability, and can cultivate the students to discuss the classification, the important mathematics idea of the combination of several forms, so the quadratic function plays a very important role in maths in secondary vocational schools.