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7 May, 12:00

Which of the following best describes how the y values are changing over each interval? They are increasing by 20 each time. They are increasing by 40 each time. They are being multiplied by 2 each time. They are being multiplied by 4 each time.

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  1. 7 May, 12:52
    0
    They are being multiplied by 2 each time.

    Step-by-step explanation:

    The y-values are

    20, 40, 80, 160, 320

    To get the second value, 40, from the first, 20, we can either add 20 or multiply by 2.

    To get the third value, 80, from the second, 40, we can either add 40 or multiply by 2; since the relationship needs to be the same each time, it is multiplying by 2.
  2. 7 May, 15:36
    0
    C: They are being multiplied by 2 each time.

    Step-by-step explanation:

    x y Reason:

    1 20

    2 40 2 x 20 = 40

    3 80 2 x 40 = 80

    4 160 2 x 80 = 160

    5 320 2 x 160 = 320
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