Question 76262
3X+Y=6, Y=-3X+6
3X-Y=0, -Y=-3X, y=3x
{{{ graph( 300, 200, -6, 5, -10, 10, y = -3x +6, y = 3x) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -3x +6 and y = 3x).