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11 July, 14:53

If f (x) = 5x-7 and g (x) √x-2 which statement is true?

-5 is in the domain or

-5 is not in the domain

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Answers (1)
  1. 11 July, 15:15
    0
    If f (x) = 5 x - 7

    f (5) = 5 * 5 - 7 = 25 - 7 = 18

    - 5 is in the domain

    g (5) = √ (5 - 2) = √ ( - 3) (this is an irrational number)

    - 5 is not in the domain.
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