Function is shifted horizontally, 2 units left of g(x). There is no vertical shift.
Step-by-step explanation:
Adding a real number s to the argument of a function will have an effect of shifting the graph of the function horizontally by s units. If s>0 the shift is to the left, for s<0 the shift is to the right. See attached plot of the two functions of g(x) and g(x+2), if you are curious enough.