抽象函数,一般理解为没有给出解析式,间接给出函数的性质的一种函数的给出形式.下面以近年的高考试题为例,探讨抽象函数的一些学习的方法.1常见的抽象函数性质1.1对称形如f(x+a)=f(b-x),函数具有对称性,对称轴为x=a+b2.形如f(x+a)=-f(b-x),函数具有对称性,对称中心为a+b2,()0.例1(2012年辽宁省高考11题)设函数f(x)(x Abstraction function, generally understood as no given analytic, indirectly gives the function of the nature of a given form of the following in recent years college entrance examination questions as an example, to explore some of the abstract function of the learning method.1 Common abstraction function Properties 1.1 Symmetric form f (x + a) = f (bx), the function has symmetry, the symmetry axis is x = a + b2. , The center of symmetry is a + b2, () 0. Example 1 (Liaoning Province in 2012 11 questions) set function f (x) (x