Plot the point (0,3) the y intercept
find the x intercept, by setting y=0 and solving for x
0 =(3/2)x + 3
(3/2)x = -3
x = (2/3)(-3) = -2
the x intercept is the point (-2,0)
plot the point (-2,0) and the point (0,3)
connect those two points with a straight line, that's the graph of the equation, it's a straight line, upward sloping