Can anyone plz explain how to find the domain and range of xsquare+3 and the rule of fg is (X+3)square?

Question

i just need to no how 2 find the domain jus by nowing the the rules (fg) and (gf). thank you!

Answer 1

The domain of y = x^2+3 is all the real numbersThe range is
y >= 3.


Sorry but I don't know what the rules fg an gf are. You say the rule of fg is (x+3)^2. I can't see how that could help you determine range and domain for y=x^2+3.