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For f(x) = √x and g(x) = x + 9, find the following functions.

a. (f o g)(x) =
(Simplify your answer.)
b. (g o f)(x) =
(Simplify your answer.)
c. (f o g)(7) =
(Simplify your answer.)
d. (g o f)(7) =
(Simplify your answer.)
Show your work below.

User Arly
by
8.2k points

1 Answer

6 votes

Part a


(f \circ g)(x)=f(g(x))=√(x+9)

Part b


(g \circ f)(x)=g(f(x))=√(x)+9

Part c


(f \circ g)(7)=√(7+9)=4

Part d


(g \circ f)(7)=√(7)+9

User Dmitry Gryazin
by
7.6k points

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