1
Select the correct answer.
If f(x) = 2
2
and g(x)=x²-9, what is the domain of g(x) + f(x)?
-
OA.
O
(o, 2] and [2, co)
OB.
[0, 4) and (4, ∞)
OC. (-∞, 2] and [4, )
OD. (-∞, -2] and [2, co)