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28 July, 19:08

What is the value of f (-1) when f (x) = 2x+2

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Answers (2)
  1. 28 July, 21:21
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    Plug (-1) into the x then you'll get 2 (-1) + 2 then you'll get 0 because - 1 times 2 is - 2 and - 2 plus 2 equals 0
  2. 28 July, 21:36
    0
    First plug in F (-1) into F (x) + 2x+2

    F (-1) = 2 (-1) + 2

    Solve

    F (-1) = - 1 + 2

    F (-1) = 1

    So when the function is - 1, x equals 1
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