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If f(x)=7x and g(x)= 3x+1, find ( fog ) (x)

If f(x)=7x and g(x)= 3x+1, find ( fog ) (x)-example-1

2 Answers

0 votes

Answer:

21x+7 is correct

Explanation:

User Mfperzel
by
8.6k points
1 vote

Answer:

Option B is correct

The value of
(fog)(x) is, 21x+7

Explanation:

Given the functions:


f(x) = 7x


g(x) = 3x+1

We have to find
(fog)(x)


(fog)(x) = f(g(x))

substitute the function g(x) we have;


(fog)(x) = f(3x+1)

Replace the value of x from 3x+1 in f(x) we have;


(fog)(x) =7(3x+1)


(fog)(x) = 21x+7

Therefore, the value of
(fog)(x) is, 21x+7

User Fudu
by
7.5k points

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