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Which expression represents the composition [f.g](x) for the functions below? f(x) = 2x + 3 g(x) = x-6 2x-9 O 2x - 3 2x - 15 O 2x2 - 9x - 18
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3 votes
Which expression represents the composition [f.g](x) for the functions below?

f(x) = 2x + 3
g(x) = x-6
2x-9
O 2x - 3
2x - 15
O 2x2 - 9x - 18

User Alies
by
5.8k points

2 Answers

2 votes

Answer:

It is option A) 2x-9

Explanation:

User Tadas Sasnauskas
by
5.8k points
4 votes
The answer is 2x-9
Explanation:
[f.g](x) = 2(x-6) + 3
2 times x = 2x
2 times -6 = -12
The positive 3 remains how it is
The equation after distributing is : 2x-12+3 simplify the -12 +3 = -9
Your final equation will be 2x-9
User Wolen
by
7.0k points
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