The domain of the original function is: Domain: {1,2,3,4} The range of the original function is: Range: {2,4,6,8}
The inverse of the function f (x) is that function that fulfills: 1) The domain of f(x)^-1 is the range of the function f (x) 2) The range of f(x)^-1 is the domain of the function f (x)
We have then that the domain of the inverse function is: Domain: {2,4,6,8} The range of the inverse function is: Range: {1,2,3,4}