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10 May, 04:42

What is the range of f (x) = 3x?

A. All positive real numbers

B. All real numbers greater than 3

C. All real numbers

D. All real numbers greater than or equal to 3

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Answers (2)
  1. 10 May, 05:22
    0
    We can replace x by any real number

    so the range is also all real numbers

    C
  2. 10 May, 06:50
    0
    The answer is C : All real numbers. This means that y values can go up forever and down forever. Any linear graph has this quality.

    A is wrong because the graph won't suddenly stop before going below the x axis

    B is wrong because the slope is 3 which has no affects on the range

    D is wrong for the same reason as b
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