4. The function g(z) has been transformed into the function f(x) shown below:

#

100

g(x)

Which of the following defines f(x) in terms of g(x)?

f(x) g(x-2)-1

f(x)= 9(2-1)-2

f(x) = g(x+2)-1

f(x) = g(x+1)+2