一、教材分析函数是是中学数学中最重要的基本概念之一,并且在高中数学的学习中起着承上启下的作用。初中初步探讨函数的概念、函数关系的表示方法以及函数图象的绘制等,并具体地讨论了正比例函数、反比例函数、一次函数、二次函数等最简单的函数。在学习了集 First, the textbook analysis function is one of the most important basic concepts in high school mathematics, and plays a role in high school mathematics learning. Junior high school initially discussed the concept of the function, the relationship between the function of the expression and the function of the image rendering, and specifically discussed the proportional function, inverse function, a function, quadratic function and other simple functions. In learning set