一、求函数最值问题的关键求函数最值问题大多取材于生活,是洋溢着人文精神的数学问题.解决这类问题时,要从实际情境出发,运用数学思想(主要有函数思想/方程思想/数形结合思想)去考虑,进而选择正确的方法.方法的选择是解题的关键,化归法和图表信息法是常用的方法,这里仅对这两 First, find the function of the value of the key to find the function of the most value problems are mostly based on life, is filled with humanistic math problems. To solve such problems, we must proceed from the actual situation, the use of mathematical ideas (mainly function ideas / equations Ideas/numbers combined with ideas) to consider, and then choose the right method. The choice of methods is the key to problem solving, and the methods of conversion and graph information are common methods.