Ihave no idea how to graph g( why f(x) is steps would be i got a final twomorrow ; -;

When you derive a function from another using the transformation

you're translating the graph of the parent function f(x) horizontally.

More specifically, you translate the graph k units to the left if k is positive, k units to the right if k in negative.

So, starting from the graph of f(x), you have that the graph of

is the same graph of f(x), but shifted 3 units to the left.