The domain of a function is the set of x values in which the function is defined or in other words, domain is the set of x values in which values the function gets a real number as the answer.

To find the domain, first try to find the points where f(x) is not defined. This happens usually when there is denominator and square roots. But this is a very simple function,

`f(x) =3x-4`

This doesn't have any such points, for all the real numbers of x , f(x) has a real answer. So the domain of the function f(x) =3x-4 is the set of Real numbers,

Domain of f(x) `= {RR}`