Question: (D) (gog)(x) and domain For f(x) = 2x + 7 and g(x) = x , find the following composite functions and state the domain of

(D) (gog)(x) and domain

For f(x) = 2x + 7 and g(x) = x , find the following composite functions and state the domain of each. (a) fog (b) gof (c) fof (d) gog (a) (fog)(x) = (Simplify your answer.) Select the correct choice below and, if necessary, fill in the answer box within your choice O A. The domain of fog is {x} (Type an inequality. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain of fog is all real numbers. (b) (g of)(x) = (Simplify your answer.) Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The domain of g of is x (Type an inequality. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain of g of is all real numbers (c) (f of)(x) = (Simplify your answer.) Select the correct choice below and, if necessary, fill in the answer box within your choice A. The domain of f of is x (Type an inequality. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain of f of is all real numbers. (d) (gog) (x) =

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