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13 January, 13:02

If the range of the function f (x) = 4x - 3 is {11.4, 15, 17, 29}, what is its domain?

A. {1.5, 2.8, 5.5, 7}

B.{2.3, 4, 8, 11}

C. {7, 11, 13.2, 14}

D. {3.4, 5, 8, 9.3}

E.{3.6, 4.5, 5, 8}

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Answers (1)
  1. 13 January, 13:31
    0
    Find x for each range value.

    for example, 11.4 = 4x-3⇒ x=14.4/4 = 3.6

    all the x values together constitute the domain.

    But, in this case, only the last option has 3.6

    hence, answer is E
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