Let f(x)=√4x and g(x) = x + 6. What's the smallest number that is in the domain of fog?

Let f(x)=√4x and g(x) = x + 6. What's the smallest number that is in the domain of fog?

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Well, at least we know how to find fog now. Check if your answer matches mine for the fog part.

\[f\circ g = f(g(x)) = \sqrt{4\cdot (x+6)}=\sqrt{4x + 24}\]

sqrt(4)*(x+6)

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