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函数值的大小比较是初中函数学习中的一项重要内容,而它与函数的图象及性质有机地结合在一起,也是近几年中考的热门试题之一,对于其中的“嵌套型”最值问题,有些学生往往感到束手无策.事实上,只要灵活运用数形结合思想将数量关系直观化,形象化,这类问题便可迎刃而解.下面以近几年中考
Comparison of the size of the function value is an important part of junior high school function learning, and it is organically integrated with the image and nature of the function. It is also one of the popular test questions in recent years. For the “nested ”The most value problem, some students often feel helpless .In fact, as long as the flexibility to use numerical combination of ideas to quantify the relationship between visualization, visualization, such problems can be solved .In the following several years in the test