在初中的函数学习中,一直有个“道不明”的难题——反比例函数.反比例函数不像正比例函数那么形象,如果正比例函数好比雨后秀丽清新的青山,那么反比例函数就如同早晨云雾环绕的黄山——令人看不透.实话实说,就我而言,第一次看见反比函数时,也是丈二的和尚——摸不着头脑.但现在我发现它也不是那么难.从前我们研究函数时要在黑板上一个个试着画图像,从而在特殊中找到一般 In junior high school function learning, there is always a puzzle of “unknown way.” Inverse function is not as positive as proportional function, and if the proportional function is like a beautiful young mountain after rain, then the inverse function is like morning mist Surrounded by the Huangshan - can not see through .Facity to tell, for me, the first time I saw the inverse function, is also a monk Zhangzhang - puzzled, but now I found it is not that difficult.We used to study Function on the blackboard try painting images one by one, so as to find the general in the special