f(x)=√x - 4. Find the inverse of f(x) and its domain.
O A. f¹(x) = (x + 4)²; x ≥ 0
OB. f¹(x) = x² + 4; x20
O c. f¹(x) = x² + 4; x≥-4
1
OD. f¹(x) = (x+4)²; x2-4