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31 May, 17:45

Find f (g (x)) if f (x) = 2x-5 and g (x) = 3x+4

a. 5x-1

b. 6x-20

c. 6x+3

d. 5x+9

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Answers (1)
  1. 31 May, 18:28
    0
    Put g (x) instead of x

    f (x) = 2x - 5

    f (g (x)) = 2 (g (x)) - 5

    f (g (x)) = 2 (3x + 4) - 5

    f (g (x)) = 6x + 8 - 5

    f (g (x)) = 6x + 3

    Option C)
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