Question

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What is true about the dilation?
On a coordinate plane, the image rectangle has points (0, 0), (0, 8), (9, 8), (8, 0). The pre-image has points (0, 0), (0, 2.5), (3, 2.5), (3, 0).

It is a reduction with a scale factor between 0 and 1.
It is a reduction with a scale factor greater than 1.
It is an enlargement with a scale factor between 0 and 1.
It is an enlargement with a scale factor greater than 1.

Answer 1

Enlargement with a scale factor greater than 1.

Reason: corresponding distances increase (for example (0,2.5) → (0,8) gives k = 8/2.5 = 3.2 > 1), so the figure is enlarged.