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13 January, 14:17

Classify each scale factor as a contraction or expansion drag and drop the choices into the box to complete the table 0.9,3/8, - 6, 5, 8/5

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  1. 13 January, 15:59
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    A scale factor of a dilation is greater than 1, then it is an expansion and if it is less than 1, then it is a contraction.

    From the given values, scale factors 0.9, 3/8 - 6 refer to a contraction and 5 and 8/5 refer to an expansion.

    Example:

    Consider any shape with area 40 square units.

    Then,

    40 (0.9) = 36 < 40

    40 (3/8) = 15 < 40

    40 (-6) = - 240 < 40

    So, 0.9, 3/8 and - 6 refer to contractions.

    Now,

    40 (5) = 200 > 40 and

    40 (8/5) = 64 > 40

    So, 5 and 8/5 refer to expansions.
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