Question

Describe how you know if the image is reduction or enlargment of the pre-image.
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Answer 1

Answer:

After a dilation, the pre-image and image have the same shape but not the same size. Sides: In a dilation, the sides of the pre-image and the corresponding sides of the image are proportional.The value of k determines whether the dilation is an enlargement or a reduction. If |k|>1 , the dilation is an enlargement. If |k|<1 , the dilation is a reduction. The absolute value of the scale factor determines the size of the new image as compared to the size of the original image.