SOLUTION: find the solution of the system x+y=8 and y=2x+-1 by accurately graphing both lines and determining their point of the intersection

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Question 375654: find the solution of the system x+y=8 and y=2x+-1 by accurately graphing both lines and determining their point of the intersection
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=8 (RED LINE)
...
x=0 , y=8
x=1, y =7
x=-1, y=9
x=-2, y=10
....
y=2x+-1 (GREEN LINE )
y=2x-1
x=0, y=-1
x=1,y=1
x=-1y=-3
x=-2, y=-5
...
Plot the points on the graph
...
+graph%28500%2C500%2C-5%2C12%2C-5%2C12%2C%28-x%2B8%29%2C%282x-1%29%29
..
locate the point of intersection and find the coordinates
They intersect at (3,5)
...
m.ananth@hotmail.ca