最值型应用问题经常出现在近几年的中考试卷中 ,这类问题贴近生活、贴近社会 ,有利于体现数学的人文价值和社会价值 ,有利于考查学生的分析、猜想、建模和综合应用等各方面的能力 .本文举例介绍用函数性质解一类最值型应用题 .一、一次函数、反比例函数性质的应用一次函数和反? The most value-based application problems often appear in the examination papers in recent years. These problems are close to life and close to the society, and are conducive to embodying the humanistic and social values ​​of mathematics. They are conducive to the analysis of students, conjectures, modeling, and comprehensive applications. Such as the ability of various aspects. This paper gives an example of the use of the properties of a class to solve a class of application problems. First, the function of a primary function, the inverse function of the application of a linear function and inverse.