So for f(x) remember its essentially Y, so if that helps, remember f(x) is the same as y. Anyways, so when its x+h, the graph point with shift to the right h amount of units, and when its x-h, the point with shift to the left h amount. And then when its x(k) the graph will shift up. You can remember that h with shift left or right by thinking of h= horizontal. Does it all make sense?