Question 1018852: I need help with graphing. I'm supposed to solve each system by graphing the problem is
2x - y= -5
-2x - y= -1
Any help is appreciated
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! I need help with graphing. I'm supposed to solve each system by graphing the problem is
2x - y= -5
-2x - y= -1
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Graph the 2 lines. The solution of the system is the intersection.
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They're straight lines, so you need 2 points for each.
2x - y= -5
At x = 0, y = 5 --> (0,5)
At y = 0, x = -5/2 --> (-2.5,0)
Plot the 2 points, draw a line thru them.
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Do the same for the other equation.
Answer by stanbon(75887)  (Show Source):
You can put this solution on YOUR website! solve each system by graphing the problem is
2x - y= -5
-2x - y= -1
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Graphing 2x - y = -5
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solve for "y"::
y = 2x+5
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Plot two points::
If x = 0, y = 5 ; If x = -1, y = 3
Plot (0,5) and (-1,3) and draw a line thru them.
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Graphing -2x - y = -1
Solve for "y"::
y = -2x+1
Plot two points:: (0,1) and (-1,3)
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Note that (-1,3) satisfies both equations.
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Cheers,
Stan H.
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