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25 August, 12:40

Given: g (x) =

Square root x-4

and h (x) = 2x-8.

What are the restrictions on the domain of g o h?

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Answers (1)
  1. 25 August, 14:03
    0
    The Domain is [6, ∞).

    Step-by-step explanation:

    g o h = √ (2x - 4 - 8)

    = √ (2x - 12).

    Since there is no real square root of a negative 2x - 12 must be ≥ 0. That is

    x ≥ 6.

    Thus the domain must be All Reals (x not <6).
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