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Bellwork Perform a glide reflection of and over line y=x for the points A: (-4,2), B:(-22,-3) and C:( 0,2) No Clickers

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Bellwork Solution Perform a glide reflection of and over line y=x for the points A: (-4,2), B:(-22,-3) and C:( 0,2)

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Section 9.7

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The Concept For our last section of chapter 9 were going to revisit Dilations For the most part, our understanding of these transformations was relatively complete. We are primarily going to revisit the process and discuss how we can perform dilations with matrices

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Review Dilations Dilations Scaling of an object by the same factor in all directions Scaling of an object by the same factor in all directions Similarity transformation Similarity transformation Not an Isometry Not an Isometry

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Coordinate Notation For similicity, we prefer to be able to notate for dilations For similicity, we prefer to be able to notate for dilations For dilations centered at the origin For dilations centered at the origin (x,y) (kx,ky), where k is a scale factor (x,y) (kx,ky), where k is a scale factor If 0