## College Algebra (10th Edition)

$[-2,\ \infty)$
We need to find the domain of: $\sqrt{3x+6}$ We know that we can't take the square root of a negative number, so: $3x+6\geq 0$ $3x\geq -6$ $x\geq-2$ Therefore, the domain is: $[-2,\ \infty)$