将一次函数、二次函数、反比例函数融合在同一道题中,构成综合型试题,是近几年中考中出现的新题型.解答这类问题需要熟练掌握各类函数的概念、图象、性质及各个系数的几何意义.本文从近几年的中考题中撷取数例略作解析,供参考.例1下列函数中,当x>0时,y随x值的增大而减小的是() The first-order function, quadratic function and inverse proportion function are merged into the same question to form a comprehensive test question, which is a new question type that appeared in the middle school test in recent years. To answer these questions, we need to master the concepts, images, Nature and the geometric meaning of each coefficient.In this paper, from a few years ago in the senior high school entrance examination questions taken for a few simple analysis, for reference.Example 1 The following function, when x> 0, y decreases with the increase of x Is ()