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函数知识是初中数学知识的重要组成部分,是中考数学的热门考点之一.函数的学习离不开函数图象,函数图象是研究函数的性质、特点等的重要依据和主要工具.函数的图象在解题中的应用十分广泛、十分普遍,下面通过典型例题,就如何使用函数的图象解答数学问题的思路、方法和技巧,向同学们作一介绍.
Function knowledge is an important part of junior high school mathematics knowledge and is one of the most popular test centers in mathematics test.Learning can not be separated from function image, and function image is an important basis and main tool to study the nature and characteristics of the function. The application of image in solving problem is very extensive and very common. The typical examples below are used to introduce the students how to use the function image to solve the problem, method and technique of math problem.