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24 February, 01:20

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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Answers (1)
  1. 24 February, 01:21
    0
    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
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