Answer this question for me cause i'm so lost and i have no clue what i am doing

For any values less than -3, the answer is undefined, because then you have a negative value for √x+3

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?