SOLUTION: Find the domain of the composite function f*g. f(x)=x^2+9; g(x)=sqrt x-3

Question 684992: Find the domain of the composite function f*g. f(x)=x^2+9; g(x)=sqrt x-3
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
f(g(x)) =
...
square root and square are inverse functions, so
f(g(x)) = x-3 + 9
f(g(x)) = x + 6
...
The domain of f(g(x)) is all real numbers.
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