Question 143211
X+2Y=4
2Y=-X+4
Y=-X/2+4/2
Y=-X/2+2
{{{ graph( 300, 200, -6, 5, -10, 10, -x/2 +2) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -x/2 +2).