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直线方程是解析几何的基础,它的特点是用代数的方法研究直线问题.初学者往往对数形结合的研究方法认识不足,不善于把直线的几何属性转换为代数关系来讨论问
Linear equation is the basis of analytic geometry, which is characterized by the use of algebraic methods to study straight-line problems. Beginners tend to logarithmic combination of lack of understanding of the research methods, not good at the geometric properties of straight lines into algebraic relations to discuss