Consider the function and its inverse.
f(x) = x2 + 4 and f-1(x) = -x - 4
When comparing the functions using the equations, which conclusion can be made?

The domain of f(x) is restricted to x > 0, and the domain of f(x) is restricted to x 20.
The domain of f(x) is restricted to x > 0, and the domain of f'(x) is restricted to xs0.
The domain of f(x) is restricted to x s 0, and the domain of f(x) is restricted to x 4.
The domain of f(x) is restricted to x s 0, and the domain of f(x) is restricted to x s 4.