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6 May, 20:30

Find the range of the function for the given domain. - >

f (x) = 2x-6; {-2, - 1, 0, 1, 2}

What is the range?

A. {-10, - 7, - 6, - 3, - 2}

B. {-10, - 7, - 7, - 3, - 2}

C. {-11, - 8, - 6, - 4, - 1}

D. {-10, - 8, - 6, - 4, - 2}

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Answers (1)
  1. 6 May, 22:57
    0
    Range = y

    Domain = x

    y = 2x - 6

    When x = - 2

    y = 2 (-2) - 6

    y = - 4 - 6

    y = - 10

    When x = - 1

    y = 2 (-1) - 6

    y = - 2 - 6

    y = - 8

    When x = 0

    y = 0 - 6

    y = - 6

    When x = 1

    y = 2 (1) - 6

    y = 2 - 6

    y = - 4

    When x = 2

    y = 2 (2) - 6

    y = 4 - 6

    y = - 2

    Solution: {-10, - 8, - 6, - 4, - 2}

    Answer: D
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