How to determine when a system has no solution by graphing

The video tutorial explains how to solve systems of equations by graphing. It begins with a recap of previous lessons on graphing equations separately to find their intersection points. The instructor demonstrates graphing two equations in slope-intercept form, highlighting the importance of writing slopes as fractions. The tutorial identifies that the equations have the same slope, indicating parallel lines that do not intersect, leading to no solution. The video concludes by explaining that parallel lines result in an inconsistent system.

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