we have
\(y=\sqrt{x+6} -7\)
we know that
The radicand of the function must be greater than or equal to zero
so
\(x+6 \geq 0\)
\(x\geq-6\)
the solution is the interval---------> [-6,∞)
therefore
the answer is
The domain are all values of x greater than or equal to minus six
