Select the correct answer.
Two exponential functions, f and g, are shown in the figure below, where g is a transformation of f.
4
2
-2
9 2
2
X
Which of the rules given below shows the transformation of f?
OA.
g(x) = f(x) - 4
OB.
g(x) = f(x-4)
OC.
g(x) = f(x) + 4
OD. g(x) = f(x + 4)