Well I don’t have graph paper atm but I can tell you how to do it. So f(x) is another way of saying that’s ur Y. So think of it as Y=3x-4. When graphing that you put -4 for your Y intercept. So ur coordinate for that would be (0,-4). Then since you are putting f(3) in for X you would do 3(3)-4. 3 x 3 is 9 and 9-4 is 5. So it would be placed on the coordinate of (3,5) I hope this helped
