Calculating the Scale Factor of a Dilation

This video tutorial explains how to calculate the scale factor of a dilation by comparing the measurements of an image and its preimage. It covers the concept of dilation, the role of the center of dilation, and how to determine the scale factor using corresponding vertices and side lengths. The tutorial also discusses different types of dilation, including enlargement, reduction, and congruence, and emphasizes the importance of checking all sets of corresponding sides to ensure proportionality.

What is the scale factor of a dilation when comparing the side lengths of the preimage and image?

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How can you calculate the scale factor of a dilation using the corresponding vertices of the image and preimage?

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Explain the relationship between the ratios of the pairs of corresponding sides in a dilation.

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What distinguishes an enlargement from a reduction in terms of scale factor?

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How do you find the scale factor K for a given dilation using the lengths of the sides?

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What is the scale factor when the image and preimage are the same size and shape?

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Describe how to determine if a set of figures is congruent based on their scale factor.

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