中考题中频繁出现有关最值问题,常让很多同学束手无策,望而生畏,其实解这类试题关键是要结合题意,借助相关的概念、图形的性质,将最值问题化归与转化为相应的数学模型(函数增减性、线段公理、三角形三边关系等)进行分析与突破,现结合2015年各地试题的特点进行剖析,希望能给同学一定的启示与帮助. In the examination questions often appear on the most valuable issues, often let many students helpless, daunting, in fact, the key to solving these questions is to combine the questions, with the relevant concepts, the nature of the graphics, the value of the problem into the corresponding Mathematical model (function addition and subtraction, line axioms, triangular trilateral relations, etc.) analysis and breakthrough, are now combined with the characteristics of the questions around 2015 analysis, hoping to give students some inspiration and help.