Find the Domain of the Square Root Function $$f ( x ) = \sqrt { x + 3 }$$

Multiple Choice

Find the domain of the square root function. Then use the domain to choose the correct graph of the function.
- $$f ( x ) = \sqrt { x + 3 }$$

A) domain of $f : [ - 3 , \infty )$

B) domain of $f : [ 3 , \infty )$

C) domain of $\mathrm { f } : ( \infty , - 3 ]$

D) domain of $\mathrm { f } : ( \infty , 3 ]$