# How do you find the domain of the function f(x)=log(x-8)?

Apr 19, 2015

Say that p=x-8

Therefore f(p)=log(p),

Now p must be greater than 0 (p>0).

This means that:

x-8>0,

Therefore:

x>8.

So your answer is x is an element of a real number, however, x must be greater than 8.