直线的一个参数方程及其性质

A linear equation with parameter and it's property

以向量作为研究手段,导出直线的一个参数方程,并进一步利用该方程所具有的性质,建立直线上点的位置与方程中参数的取值之间的关系,最后通过例子说明所得结果的有效性。

In this paper, we educe a linear equation with parameter by adopting vector means, and by utilizing the property of this equation, we establish the relation between the location of dot in beeline and value of parameter in equation. Finally, some examples are presented to illustrate the effectiveness of the results obtained.