Answer:
Domain : [-4, ∞)
Range : [ -2, ∞) 
Explanation:
The given function is y = 

Domain of the given function will be 
(x + 4) ≥ 0
[ Since square root of numbers less than 0 is not possible ]
Domain : x ≥ (-4) 
Or [-4, ∞) will be the domain
Now range of the function will be x ≥ -2
[ -2, ∞) will be the range of the given function.