Question

What is the inverse of the function f(x) = x + 2?

Answer 1

y=x+2   solve for x and then reverse labels...

y-2=x so

y=x-2

f^-1(x)=x-2 is the inverse of f(x)=x+2

Answer 2

the answer will be

f(x)= 2+x 

hope this helps