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Question 127875: . Solve the system by graphing. x + 3y = -3, 2x – y = 8
Do I solve this first and then graph it? How do I graph it?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Solve the system by graphing.
x + 3y = -3
2x – y = 8
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Solve each equation for "y".
y = (-1/3)x -1
y = 2x - 8
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Plot points for each equation:
y = (-1/3)x - 1
If x = 0, y = -1
If x = 3, y = -2
Plot the points: (0,-1) and (3,-2)
and draw a line thru them.
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y = 2x - 8
If x = 0, y = -8
If x = 1, y = -6
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plot the points: (0,-8) and (1,-6)
and draw a line thru them.
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Solution: (3,-2)
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Cheers,
Stan H.
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