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when solving a system of linear equation by graphing what determines the solution

 Feb 26, 2015

Best Answer 

 #1
avatar+23254 
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The point where the two graphs cross is the solution.

If the graphs cross at the point (6, -5), then the solution is:  x = 6 and y = -5.

If the lines are parallel, they don't cross and there is no solution.

If, when graphed, one line sits exactly on top of the other, then there is no single solution; every point is a solution to both equations.

 Feb 27, 2015
 #1
avatar+23254 
+5
Best Answer

The point where the two graphs cross is the solution.

If the graphs cross at the point (6, -5), then the solution is:  x = 6 and y = -5.

If the lines are parallel, they don't cross and there is no solution.

If, when graphed, one line sits exactly on top of the other, then there is no single solution; every point is a solution to both equations.

geno3141 Feb 27, 2015

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