Select the correct answer.
What is the inverse of function f?
ƒ(x) =
= √ + 7
O A.
¹(z) = (x + 7)², for ≥ -7
O B.
f¹ (2) = 1² - 7, for x ≥ 7
O C.
f¹ (2) = (x-7)², for x ≥ 7
OD. ¹(z) = x² + 7, for x ≥ -7