Answer
Alicyn should not limit the domain and the range.
The domain is $(-\infty,\infty)$.
and the range is $(-\infty,\infty)$.
Work Step by Step
The given function is
$f(x)=4x+8$.
This is a linear function.
Hence, all real number inputs will result in real number outputs.
The domain is $(-\infty,\infty)$.
and the range is $(-\infty,\infty)$.
