Calculating the Scale Factor of a Dilation

This video explains how to determine the scale factor of a dilation by comparing the side lengths of the preimage and image. It demonstrates two methods: dividing the corresponding vertices and finding the ratio of the corresponding sides. The video also emphasizes the importance of checking all sets of corresponding sides to ensure proportionality and reviews different types of dilations, including enlargements, reductions, and congruent figures, and provide examples for each.