最近,我看到一些数学教学的文章,对型如y=mx+n%+px+q%,其中mx+n+px+q=c(常量)的函数值域问题从多个方面进行了有益的探索,颇受启发.但是,对mx+n+px+q=φ(x)(变量)的函数值域问题探索很少.本文从现行教材《普通高中课程标准实验教科书数学选修4-5不等式选讲》第35页例2出发,对y=mx+n%+px+q%(mx+n+px+q=φ(x))的函数值域问题的多种求法进行一些探讨,希望起到抛砖引玉的作用. Recently, I have seen some articles on math teaching that the problem of the range of the function of the type such as y = mx + n% + px + q%, where mx + n + px + q = c However, there is very little exploration on the functional domain of mx + n + px + q = φ (x) (variables) .This article from the existing textbook “Ordinary High School Curriculum Standard Experimental Textbook Mathematics Elective 4- Starting from Example 2 of ”5 Inequality Equations", on page 35, we discuss some ways to solve the problem of the functional range of y = mx + n% + px + q% (mx + n + px + q = φ , Hoping to play a valuable role.