函数图象的变换是学习函数图象中的难点,也是掌握函数有关性质的难点,同时又是难以掌握的基本概念,高考每年都有体现.下面就函数图象的12种变换关系及其应用,进行归纳和解说.一、变换关系1.函数y=f(x)图象与函数y=f(-x)图象之间的关系函数y=f(-x)的图象是由函数y=f(x)图象沿y轴 The function image transformation is a difficult point in the learning function image. It is also a difficulty in grasping the nature of the function. At the same time, it is difficult to grasp the basic concept. The college entrance examination is reflected every year. The following 12 kinds of transformation relations of function images and their applications Summarize and explain. First, the transformation relationship 1. The function y = f (x) The relationship between the image and the function y = f (-x) image The function y = f (-x) of the image is by the function y=f(x) image along y axis