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6 April, 06:35

If f (x) = 3x^2-7, find f (4). Show all work

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Answers (2)
  1. 6 April, 08:14
    0
    Plug in all x's for 4. 4^2 = 16 - - > 16x3=48 - - > 48-7 = 41

    41 is the final answer
  2. 6 April, 08:52
    0
    f (x) = 3x ² - 7

    Simply insert value of x, 4 into the equation then simplify

    f (4) = 3 (4) ²-7

    =3 (16) - 7

    = 48 - 7

    = 41
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