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Use the functions f(x) and g(x) to answer the question f(x) =4x - 5; g(x)= x+3 A. 4x - 2 B. 4x + 7 C. 4x+ 12 D.5x - 2
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Use the functions f(x) and g(x) to answer the question

f(x) =4x - 5; g(x)= x+3

A. 4x - 2
B. 4x + 7
C. 4x+ 12
D.5x - 2

User Berthier Lemieux
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1 Answer

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The answer is B. 4x + 7

The function is fg(x), so for the equation, it will be fg(x) : 4g(x) - 5, then substitute the equation of g(x) into fg(x) and you will get 4 (x + 3) - 5, then solve it by expanding
User Snickers
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