Respuesta :

sleepyjess
Since x+4 is under the square root, that's all we need to focus on for the domain. The square root can't be negative, so x+4 MUST be greater than or equal to 0. 

[tex]x+4 \geq 0[/tex]
Subtract 4 from both sides
[tex]x \geq -4[/tex]
That's the domain