SOLUTION: Please, please help? I need to solve by graphing: x - y = 5 x + y = 3 x -2y = 8 x + y = -1

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: Please, please help? I need to solve by graphing: x - y = 5 x + y = 3 x -2y = 8 x + y = -1       Log On


   

Question 122729: Please, please help? I need to solve by graphing:


x - y = 5 x + y = 3
x -2y = 8 x + y = -1


















Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X-Y=5 OR -Y=-X+5 OR Y=X-5 (RED LINE)
X+Y=3 OR Y=-X+3 (GREEN LINE)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+Y+=+X+-5%2C+Y+=+-X+%2B3%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions Y = -X -5 and Y = -X +3).
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X-2Y=8 OR -2Y=-X+8 OR Y=-X/-2+8/-2 OR Y=X/2-4 (RED LINE)
X+Y=-1 OR Y=-X-1 (GREEN LINE)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+Y+=+X%2F2+-4%2C+Y+=+-X+-1%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions Y = X/2 -4 and Y = -X -1).