浅析怎样绕开二次函数中的陷阱

A Brief Discussion How to Avoid the Traps in Quadratic Function

二次函数不但是中考数学的重点,也是难点,其中出题者设置的一些陷阱,往往使考生大费周章。本文介绍了如何避开二次函数陷阱的几条妙招,降低难度。

Quadratic function is both key and diffieuh point in mathematics test in senior high school entrance examination, for the traps set by inslructors often greatly trouble examinees. In or- der to reduce the degree of difficulty, this paper introduces several coups to avoid the traps.