Systems of equations with graphing (Full video)

Khan Academy

Supporting grades: 8

Description: Sal shows how to solve a system of linear equations by graphing and looking for the point of intersection. Created by Sal Khan. Let's say I have the equation y is equal to x plus 3. And I want to graph all of the sets, all of the coordinates x comma y that satisfy this equation right there. So this line is going to look like this.

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