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反比例函数与其他知识相结合形成的综合题，是中考题的常见题型．类型较多，现分类析解如下：一、与正比例函数相结合例已知正比例函数y1=αx，反比例函数，在同一坐标系中这两个函数的图象没有交点，则a与b的关系是（）（A）同号；（B）互为倒数；（C）异号；（D）互为相反数
The comprehensive question formed by the combination of inverse proportion function and other knowledge is a common question in the exam questions. There are many types, and the current classification analysis is as follows: First, the case of combination with a positive proportional function is known as a positive ratio function y1=αx, an inverse proportional function. In the same coordinate system, the images of these two functions have no intersection, and the relationship between a and b Yes () (A) Same number; (B) Inverse reciprocal; (C) Alpha; (D) Inverse of each other