Posted by Kathy on .
The domain of g(f(x)) where f(x)=x+4 and g(x)=sqrt(x) is?

math 
Henry,
F(x) = x + 4.
g(x) = sqrt(x).
Find g(F(x)).
g(F(x))) = g(x+4) = sqrt(x+4).
Domain = All real values of X that does
not give a negative radical value:
Domain: X=> 4.
Therefore, the domain is all values of
X from 4 up.