# What is the domain and range of f(x)=2x+4?

Sep 23, 2015

Domain: all real $x$;
Range: all real $y$.
Your function is a Linear Function represented graphically by a straight line passing through $x = 0 , y = 4$ and with slope equal to $2$.
It can accept all real $x$ and produces, as output, all real $y$.