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含绝对值的函数通常是指有自变量或关于自变量的代数式包含在绝对值符号之内的一类函数,简称绝对值函数.纵观近几年高考试题,有关含绝对值函数的最值问题层出不穷,它与方程、不等式、分段函数等密切交汇,立意新颖、综合性强、能力要求高、解题难度大,常以压轴题的形式出现,彰显数学重要思想方法,在高考命题中独占鳌头、经久不衰.由于绝对值概念简单熟悉,再加上绝对值本身具有非负特性以及表示距离的几何特征,可移植性强,其与初等函数模
The absolute value of the function is usually refers to an argument or argument on the algebraic symbols included in the absolute value of a class of functions, referred to as absolute value function.Review of the college entrance examination papers in recent years, the absolute value of the function with the most value The problem emerges in an endless stream, which closely intersects with equations, inequalities and piecewise functions. It has the characteristics of novelty, comprehensiveness, high competence and difficulty of solving problems. It often appears in the form of finale, highlighting the important thought and method of mathematics. Champion, enduring.Because of the simple concept of absolute familiarity, coupled with the absolute value of the non-negative characteristics of their own and that the geometric characteristics of distance, portability, and its elementary function model