针对直线与抛物线的位置所设置的问题,蕴含数学思想方法、数学学科的整体意义,是从知识网络的交汇点出发设计题目,所以综合性大.本文以例题详解直线与抛物线的位置所涉及直线方程的确定、线段定值的证明、动点到直线的最值问题,以期得到解决这类问题的一般方法.一、直线方程的确定 The problem of setting the position of the straight line and the parabola implies the overall significance of the mathematical thinking method and the mathematics subject. It is the design of the topic from the intersection point of the knowledge network. Therefore, the comprehensiveness is large. This article uses examples to specify the straight line and the position of the parabola. The determination of the equation, the proof of the line segment value, the point of the moving point to the maximum value of the line, in order to get a general approach to solve this type of problem. First, the determination of the linear equation