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6 April, 00:43

What is the range of the function f (x) = 4x + 9, given the domain D = {-4, - 2, 0, 2}?

R = {-7, - 1, 9, 17}

R = {1, 7, 9, 17}

R = {-17, - 9, - 1, 17}

R = {-7, 1, 9, 17}

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Answers (1)
  1. 6 April, 00:53
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    Evaluate f (x) = 4x + 9 for each of the input values in D = {-4, - 2, 0, 2}:

    f (-4) = 4 (-4) + 9 = - 7 (and so on)

    f (-2) = 1

    f (0) = 9

    f (2) = 17

    The range is R: {-7, 1, 9, 17}
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