# How do you find the domain and range of sqrt(x-4)?

Jun 22, 2016

Domain $x \in \mathbb{R}$ but $x \ge 4$
Range $\left(0 , \infty\right)$

#### Explanation:

$\sqrt{x - 4}$
$x - 4 \ge 0$
Domain $x \in \mathbb{R}$ but $x \ge 4$
Range $\left(0 , \infty\right)$