SOLUTION: Graph the following systems and determine the solution set: 1.)x+y=10 2x-y=-4

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Question 464501: Graph the following systems and determine the solution set:
1.)x+y=10
2x-y=-4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Graph the following systems and determine the solution set:
1.)x+y=10
2.)x-y=-4
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Solve both for "y" and plot 2 points for each equation:
x+y = 10
y = 10-x
If x = 0, y = 10
If x = 10, y = 0
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Plot (0,10) and (10,0) and draw a line thru them to get:
graph%28400%2C300%2C-20%2C20%2C-20%2C20%2C10-x%29
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x-y = -4
y = x+4
If x = 0, y = 4
If x = -4, y = 0
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Plot (0,4) and (-4,0) and draw a line thru them to get:
graph%28400%2C300%2C-20%2C20%2C-20%2C20%2Cx%2B4%29
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Find the point that lies on both lines: (3,7)
graph%28400%2C300%2C-20%2C20%2C-20%2C20%2Cx%2B4%2C10-x%29
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Cheers,
Stan H.
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