# What is the range of the function  f(x)=3x-1?

May 5, 2018

$R = \mathbb{R}$
It can take all real values on $x$$x$' and $y y$' so the domain and range is the set of real numbers.
${D}_{f} = \mathbb{R}$ ,
$f \left({D}_{f}\right) = f \left(\mathbb{R}\right) = \mathbb{R}$