Question

State the domain of the rational function.
f(x) = 6/4 - x

Answer 1

\[\Large f(x)=\frac6{4-x}\]
Rational functions have domains of 'all real numbers' EXCEPT those real numbers that would make the denominator equal to zero. So which number(s) would make the denominator equal to zero?

Answer 2

4

Answer 3

And that's it :)
All real numbers except that :)