What transformation has changed the parent function f (x) = log3x to its new appearance shown in the graph below?

Possible answers:

f (x - 2)

f (x + 2)

f (x) - 2

f (x) + 2

Looking at the graph I see that f (x) ╪ log (3x) but rather log {base 3 } x ...

in which case you should see that when x = 3 we have f (3) = 1

but at x = 3 the graph has value 3 = 1 + 2 ... thus answer is f (x) + 2