# How do you find the domain and range of y=3x+2?

Jun 2, 2018

Domain $\left\{x | x \text{ is } \mathbb{R}\right\}$
Range $\left\{y | y \text{ is } \mathbb{R}\right\}$
$y = 3 x + 2$ is the equation of a line with slope $m = 3$, the domain and range of any line with $m \ne 0$ and $m \ne \emptyset$ is all real numbers:
Domain $\left\{x | x \text{ is } \mathbb{R}\right\}$
Range $\left\{y | y \text{ is } \mathbb{R}\right\}$