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3 November, 12:19

A line passing through which of the following pairs of coordinates represents a proportional relationship?

A.

(1.3, 3.3) and (2.3, 4.3)

B.

(2.5, 5) and (3, 5.5)

C.

(1.25, 2.25) and (2.5, 5)

D.

(1.25, 2.5) and (3.75, 7.5)

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Answers (1)
  1. 3 November, 15:11
    0
    D

    Step-by-step explanation:

    A proportional relationship is a relationship where the x and y values form equal ratios. The ratio is written as y/x.

    A.

    (1.3, 3.3) and (2.3, 4.3)

    3.3/1.3 = 4.3/2.3 are not equal

    B.

    (2.5, 5) and (3, 5.5)

    5/2.5 = 5.5/3 are not equal

    C.

    (1.25, 2.25) and (2.5, 5)

    2.25/1.25 = 5/2.5 are not equal

    D.

    (1.25, 2.5) and (3.75, 7.5)

    2.5/1.25 = 7.5/3.75 are equal.
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