二元一次方程组作为代数中的重要内容,一直是学习的重点和难点。从代数的角度出发,解二元一次方程组一般采用代入消元和加减消元法。那么如果从几何的角度出发,可否把方程组与图形联系呢?现略举几例并加以点评,以飨读者。学习了一次函数,我们可知一次函数与直线有对应关系。具体步骤如下:将方程变形:众所周知,二元一次方程都可以变形为用一 As an important content in algebra, the binary system of primary equations has always been the focus and difficulty of learning. From the perspective of algebraicity, the solution to the binary system of primary equations generally adopts substitution elimination and addition and subtraction elimination methods. So if you can start from a geometric point of view, can you connect the equations to the graph? After learning a function, we know that there is a correspondence between a function and a straight line. The specific steps are as follows: The equation is deformed: As we all know, the binary equation can be transformed into a