Question 336265: I am having problems understanding how to solve these equations as well as graph them. Here are the equations x+y=11 and x-y=1. Please help me understand so I can pass my algebra class.
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! 1.
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Solve them algebraically by adding them together to eliminate  .
Then go back and use either equation to solve for .
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You can solve it graphically by plotting the graphs and looking for the intersection point.
To plot each line, find the intercepts.
To find the x-intercept, set y=0 and solve for x.
(11,0)
Plot it.
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To find the y-intercept, set x=0 and solve for y.
(0,11)
Plot it too.
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Connect these 2 points with the line.
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To find the x-intercept, set y=0 and solve for x.
(1,0)
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To find the y-intercept, set x=0 and solve for y.
(0,-1)
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Connect these 2 points with the line.
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Guess what, the intersection point is ( , ).
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Now you have no excuses for not passing.
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