y = 3x/4 + 2
slope = 3/4
y-intercept = 2 = (0,2)
First point in the graph is your y-intercept which is (0,2) and second point will be by your slope (rise/run = 3/4).
(Rise is your y and run is your x.)
(0,2) + (4,3) = (4,5) Connect those two dots and you have the graph.