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marusya05 [52]
3 years ago
7

Let f(x) = 4x - 7 and g(x) = 2x - 3. Find (fog)(4).

Mathematics
2 answers:
REY [17]3 years ago
6 0

Answer:

13

Step-by-step explanation:

(f∘g)(4) is another way of writing f(g(4)).

First, find g(4).

g(x) = 2x − 3

g(4) = 2(4) − 3

g(4) = 5

Now substitute into f(x).

f(x) = 4x − 7

f(g(4)) = 4g(4) − 7

f(g(4)) = 4(5) − 7

f(g(4)) = 13

ad-work [718]3 years ago
6 0

(f\circ g)(x)=4(2x-3)-7=8x-12-7=8x-19\\\\(f\circ g)(4)=8\cdot4-19=13

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