Question 130907
2X+4Y=10 OR 4Y=-2X+10 OR Y=-2X/4+10/4 OR Y=-X/2+2.5 (RED LINE)
3X=6Y=12 OR 6Y=-3X+12 OR Y=-3X/6+12/6 OR Y=-X/2+2 (GREEN LINE)
THESE ARE 2 PARALLEL LINES:
{{{ graph( 300, 200, -6, 5, -10, 10, -x/2 +2.5, -x/2 +2) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x/2 +2.5 and -x/2 +2).