Question 105418
X+Y=4 OR Y=-X+4 (RED LINE)
-X+Y=2 OR Y=X+2 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, y = -x +4, y = x +2) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -x +4 and y = x +2). 
x=1 answer.
y=3 answer.