Question

How do you find the domain of `y =sqrt(x + 4)`?

Answer 1

Since the domain talks about real numbers only, we need to find when the `√ ≥ 0`.

`0 ≤ x+ 4`

`-4 ≤ x`

Therefore , the domain is `{x| x ≥ -4, x in RR}`.

Hopefully this helps!