Question 1053074: Solve the system by graphing both lines on one coordinate system. Show work and each point.
2x+y=3
x-3y=12
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Solve the system by graphing both lines on one coordinate system. Show work and each point.
2x+y=3
x-3y=12
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They're 2 straight lines, so you need 2 points for each.
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2x+y=3
--> y = -2x + 3
Pick 2 values for x and find y.
eg,
x = 0, y = 3 ---> the point (0,3)
x = 2, y = -1 --> the point (2,-1)
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Plot the 2 points.
Draw a line thru them.
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Do the same for x-3y = 12
You might use x = 3y + 12 and pick values for y and find x.
Makes no difference.
Plot 2 points, and draw a line thru them.
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The solution to the system of 2 equations is the intersection of the 2 lines.
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