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Using the graph, we can predict how many solutions are there for the given system of linear equations.
 
1. When two lines in a graph intersect at only one point, then, the graph is said to be a consistent system and has one solution.
 
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2. When two lines in a graph do not intersect at any point, then, the graph is an inconsistent system and has no solution.
 
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3. When two lines in a graph are identical at all points, the graph is said to be a consistent system and has infinitely many solutions.
 
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