分式形式的函数在高中阶段的练习中经常出现,对高中生来说是一个很棘手的问题,以至于每当遇到这类函数,一些学生就会胆怯、退缩.本文把高中阶段经常遇到的分式函数分类、总结了一下,给出了几种分式函数的处理方法.首先来了解一下三个基础的分式类型函数.一、反比例函数形如y=k x(k≠0)的函数叫做反比例函数.它的图象大致有两种,无论哪一种它们都有一组渐近线.图象固定在渐近线所划分的两个区域内.如果将反比例函数图象左移a个单位,上移b个单位后,函数的解析式为y=k x+a+b,整理 Fractional functions often occur in high school practice and are a tricky issue for high school students so that whenever they encounter such a function, some students timidly and withdrawn. The classification of fractional functions, summed up a few, gives some treatment of fractional functions .First, to understand the three basic fractional type functions. First, the inverse function of the form y = kx (k ≠ 0) The function is called an inverse function. There are roughly two kinds of images, each of which has a set of asymptotes. The image is fixed in two regions divided by the asymptotic lines. If the image of the inverse function is shifted to the left a A unit, move up b unit, the function’s analytical formula is y = k x + a + b, finishing