与二次函数相关的题目是高考的热点题型,充分利用二次函数图象的性质,从形象直观到理性思考,能找到较为简捷的解题思路.下面从不同侧面入手,介绍几种常见类型的解题思路一、图象的位置　根据题意考察结合条件的二次函数图象的位置,以形助数列出不等式易求解. The topic related to the quadratic function is the hot topic type of the college entrance examination. It makes full use of the nature of the quadratic function image. From the visual intuition to the rational thinking, we can find relatively simple and quick problem-solving ideas. The following starts from different aspects and introduces several common Types of problem-solving ideas First, the location of the image According to the subject intention to examine the position of the quadratic function of the combined conditions of the image, in order to help the number of inequalities listed easy to solve.