Question 47969
what you need are two points and then draw a straight line through these two points.

setting y=o we get x-3*0=6 or x=6 & setting x=0 we get 0-3y=6 or -3y=6 or 
y=-6/3 or y=-2 

thus the two points are (6,0) & (0,-2) now draw the line