answer needed asap

Question

If f is one-to-one and f(4)=11, then

f^-1(11)=   

and (f(4))^-1=

Answer 1

If f(4) = 11 then f^-1(11) = 4 by definition of inverse of function.

Note: in f^-1(x), -1 is not an expoment.

Answer 2

f(4) = 11

f^-1(11) =4

(f^(x))^-1 = 1/f(x)

(f(4))^-1 = 1/f(4) = 1/11