Question 174333
Pick a value for x, let's say 0.  If x = 0 then {{{3(0)+2y=4}}} → {{{2y=4}}} → {{{y=2}}}.  We have our first point:  (0, 2)


Pick another value for x, let's say 2.  If x = 2 then {{{3(2)+2y=4}}} → {{{6+2y=4}}} → {{{2y=-2}}} → {{{y=-1}}} .  We have our second point:  (2, -1)


Plot the two points, then draw a straight line through them all the way across your graph.


{{{drawing(400,400,-5,5,-5,5,
grid(1),
green(circle(0,2,.1)),
green(circle(2,-1,.1)),
locate(.5,2,P1(0,2)),
locate(2,-.5,P2(2,-1)),
graph(400,400,-5,5,-5,5,-(3/2)x+2))}}}