Question 940924
The easiest way  is to find where the line crosses each axis (if not the origin) and these two points define the line.
2x-3y=12 Find where it crosses the x axis(set y=0)
2x=12 solve for x, divide both sides by 2
2x/2=12/2
x=6  Our first co-ordinate is (6,0)
2x-3y=12 Now find where it crosses the y axis (set x=0)
-3y=12  divide both sides by -3
-3y/-3=12/-3
y=-4 Our second co-ordinate is (0,-4)
To draw the graph plot the two points and draw a line through them.
{{{ graph( 500, 500, -10, 10, -10, 10,(2x-12)/3) }}}