Find

a) The set of real values of x for which f is real and finite

b) The range of f

2.

Let \(\displaystyle f(x)=(x+4)/(x+1)\) , x ≠ -1 and \(\displaystyle g(x)=(x-2)/(x-4)\) x ≠ 4

Find the set of values of x such that f(x) ≤ g(x)

Please help. Thanks!