State the inverse of the following function, AND state the Domain and Range of the inverse. f(x)=x-2

Answer 1

f(x) = x-2
f^-1(x) = x+2

check to be sure f(f^-1(x)) = f^-1(f(x)) = x
As with all polynomials, the domain is all real numbers.
The line is not horizontal, so it extends up and down forever. so the range is also all reals.