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22 January, 15:35

Let f (x) = 8x - 7 what is f (4)

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Answers (2)
  1. 22 January, 16:45
    0
    f (4) = 25

    Step-by-step explanation:

    f (x) = 8x - 7

    If we want to know when x = 4 what is the y value we have to subsitute 4 for x!

    So ...

    f (4) = 8 (4) - 7

    f (4) = 32 - 7

    f (4) = 25!
  2. 22 January, 19:26
    0
    Answer

    25

    Step-by-step explanation:

    plug 4 into x. 8 times 4 equals 32. Subtract 7 from 32 and you'll get 25
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