What are the domain and range of the function below?

y= sqrt(3x+9)-6
(1 point)
Responses

x ≥ 3; y ≤ 6

x ≥ -9; y ≥ -6

x ≥ -3; y ≥ 6

x ≥ -3; y ≥ -6

what is the correct answer

The correct answer is:

x ≥ -3; y ≥ -6