Question

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Answer 1

$f(x)=x+7,\ g(x)=\dfrac{1}{x}\\\\(f\ \circ\ g)(x):\\\\\text{Change x to} \ \dfrac{1}{x}\ \text{in the equation of } f(x):\\\\\boxed{(f\ \circ\ g)(x)=\dfrac{1}{x}+7}$

Answer 2

Answer:

D. (fog)(x)= 1/x+7

Step-by-step explanation:

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