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近年来,“探索规律”的考题是中考的考点,又是热点,更是考生答题的难点。其实,探索规律题是变量的关系,也就是函数的关系,只要我们认真分析寻求一定的解题技巧,这类题也就迎刃而解了。现将常见的规律题分类整理举几个例题加予分析。一、一次函数型当纵坐标的差相等时,可利用一次函数模型。例1.用火柴棒按下图的方式搭三角形。
In recent years, the “exploration of the law,” the test is the test of the test, but also a hot spot, it is difficult for candidates to answer questions. In fact, the exploration of the regular question is the relationship of variables, that is, the relationship of functions. As long as we carefully analyze and seek certain problem-solving skills, such questions will be easily solved. Now we will classify and sort out some common problems and add some examples to the analysis. First, a function type When the difference of the ordinates is equal, a one-function model can be used. Example 1. Take a triangle with a match stick as shown below.