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13 August, 14:28

Determine the domain of the function. f (x) = square root of 7+x

a. x ≥ 0

b. All real numbers

c. x ≥ - 7

d. x > 0

+4
Answers (2)
  1. 13 August, 14:46
    0
    When finding the domain of a square root function that contains a radical, we know that the radicand (value under the radical) must be positive.

    To find the domain set the radicand > = 0 and solve.

    7 + x > = 0

    Subtract 7 from both sides

    x > = - 7

    Letter C
  2. 13 August, 14:53
    0
    The answer would be C
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