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11 November, 05:12

Find the value of f (-2) for the function f/left (x/right) = 5x^2-4

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Answers (2)
  1. 11 November, 05:31
    0
    f ( - 2) = 16

    Step-by-step explanation:

    Substitute x = - 2 into f (x), that is

    f ( - 2) = 5 ( - 2) ² - 4 = 5 (4) - 4 = 20 - 4 = 16
  2. 11 November, 05:36
    0
    16

    Step-by-step explanation:

    Since f (x) is 5x^2-4

    And f (2) is given it means we will have to substitute the value for x

    So we have

    5 (2) ^2-4

    5 (4) - 4

    20-4

    16

    Therefore f (2) is 16
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