近年来,中考数学中以函数图象为背景,探究函数图象下的图形变化规律题,在中考数学中频频出现,这种“函数线下的规律图”型试题,因其涉及的知识面广、创新性强,有利于考查学生的阅读能力、理解能力、探究和分析能力等,备受中考命题者的青睐,成为中考数学试题中的一大重点. In recent years, the senior high school entrance examination mathematics in the function of the image as the background, to explore the graphics under the function of the law of the law of variation in the mathematics frequently appear in the test, this “function line under the law of” type test questions, because of its involvement Wide range of knowledge, strong innovation, is conducive to examining students’ reading ability, comprehension ability, research and analysis capabilities, etc., much favored by the senior high school entrance examination candidates, a senior high school entrance examination questions become a major focus.