SOLUTION: find the domain of the composite function fog f(x)= x^2+8; g(x)= sqrt.x-1

SOLUTION: find the domain of the composite function fog f(x)= x^2+8; g(x)= sqrt.x-1

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Question 630003: find the domain of the composite function fog
f(x)= x^2+8; g(x)= sqrt.x-1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
find the domain of the composite function fog
f(x)= x^2+8; g(x)= sqrt.x-1
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fog = f[g(x)] = f[sqrt(x-1)] = (x-1)+8 = x+7
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Domain: All Real Numbers >= 1.
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Cheers,
Stan H.
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