论文部分内容阅读
本文以2003年中考试题为例,谈谈函数综合题的类型及其解法. 一、一次函数与一次函数例1 (荆州市)直线,与直线y=2x+1的交点的横坐标为2,与直线y=x+1的交点的纵坐标为1,求直线,的函数解析式. 分析:解答本题的关键是求出两个交点的坐标.
This article takes the 2003 exam questions as an example to talk about the types and solutions of function synthesis problems. 1. The straight line of the first function and the first function example 1 (Jingzhou City), and the abscissa of the intersection point with the straight line y=2x+1 is 2. The y-coordinate of the intersection with the straight line y=x+1 is 1, find the analytical formula of the function of the straight line. Analysis: The key to solving this problem is to find the coordinates of the two intersection points.