1 / 4

9-6 Dilations

9-6 Dilations. Vocab: Dilation: A transformation that changes the size of the shape Enlargement: A dilation that makes a shape bigger (scale factor greater than 1) Reduction: A dilation that makes a shape smaller (scale factor smaller than 1, but greater than 0). Determining Scale Factor.

cynthiascott
Download Presentation

9-6 Dilations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 9-6 Dilations Vocab: Dilation: A transformation that changes the size of the shape Enlargement: A dilation that makes a shape bigger (scale factor greater than 1) Reduction: A dilation that makes a shape smaller (scale factor smaller than 1, but greater than 0)

  2. Determining Scale Factor • Scale Factor = dilation length/original length • r means scale factor in this book • Ex 1: Find the scale factor if BA is 4 and B’A’ is 12

  3. Graphing Dilations • Ex 2: Graph A(–2, –2), B(–1, 2), C(2, 1); r = 2 • Ex 3: Graph A(0, 0), B(3, 3), C(6, 3), D(6, –3); r = 1/3

  4. Classwork/Homework • P. 678 16-26 even not 20

More Related