SOLUTION: Solve by graphing. Write no solution or infinetly many solutions where appropriate. {{{ y= x-1 }}} {{{AND}}} {{{ y= -x+7}}} Please and thank you.

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve by graphing. Write no solution or infinetly many solutions where appropriate. {{{ y= x-1 }}} {{{AND}}} {{{ y= -x+7}}} Please and thank you.       Log On


   

Question 254038: Solve by graphing. Write no solution or infinetly many solutions where appropriate.
+y=+x-1+
AND
+y=+-x%2B7
Please and thank you.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by graphing. Write no solution or infinetly many solutions where appropriate.
+y=+x-1+
AND
+y=+-x%2B7
----------------------
Graph y = x-1
Let x = 0, then y = -1 giving you point (0,-1)
Let y = 0, then x = 1 giving you point (1,0)
Plot those points and draw a line thru them.
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx-1%29
=========================================
Graph y = -x+7
Let x = 0, then y = 7 giving you point (0,7)
Let y = 0, then x = 7 giving you point (7,0)
Plot those points and draw a line thru them.
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x%2B7%29
=========================================
Put both on the same axes and try to find the point of intersection.
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx-1%2C-x%2B7%29
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Solution: (4,3)
============================
Cheers,
Stan H.