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28 August, 05:07

Given f (x) = 6x + 2, find f (x + 3).

Select one:

a. f (x + 3) = 6x^2 + 20x + 6

b. f (x + 3) = 6x + 5

c. f (x + 3) = 6x + 20

d. f (x + 3) = x + 5

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Answers (1)
  1. 28 August, 08:19
    0
    6x+20

    c.

    Step-by-step explanation:

    If f (x) = 6x+2 and you are asked to find f (x+3), then you just replace all the x's in f (x) = 6x+2 with (x+3).

    Doing this gives you:

    f (x) = 6x+2 with new input (x+3) in place of out input (x)

    f (x+3) = 6 (x+3) + 2

    f (x+3) = 6x+18+2

    f (x+3) = 6x+20
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