平面向量与解析几何的交汇试题是近几年高考试题的一个热点．其主要考查方向有：①直线的夹角转化为向量的夹角(注意范围的区别)；②线段的长度(或距离)转化为向量的模的问题；③两直线的位置关系：相交、平行、垂直,分别转化为向量的不共线、共线、垂直来分析；④有关的轨迹方程(或轨迹)可以应用平 The convergence test of plane vector and analytic geometry is a hot topic in the high exam questions in recent years. The main examination directions are: 1 the angle of the straight line is transformed into the included angle of the vector (the difference of the attention range); 2 the length (or the distance) of the line segment is converted into the problem of the mode of the vector; 3 the positional relationship of the two straight lines: intersecting, parallel , vertical, respectively, into the vector is not collinear, collinear, vertical analysis; 4 related trajectory equation (or trajectory) can be applied flat