Question

True of false: the graph of a rational function sometimes has a hole

Answer 1

f(x)=x2−1x−1
I just gave you a rational function that has a hole at x=1

Answer 2

The correct answer for the given statement above would be TRUE. Given that it is only sometimes and not all the time, it is true that the graph of a rational function sometimes has a hole. Hope this is the answer that you are looking for.