IM Geometry Unit 3 Lesson 1
Diego took a picture of a hippo and then edited it. [br][br]Which is the distorted image? [br][br]How can you tell?[br][br]Is there anything about the pictures you could measure to test whether there’s been a distortion?
A dilation with center [i]O [/i]and positive scale factor [i]r[/i] takes a point [i]P[/i] along the ray [i]OP[/i] to another point whose distance is [i]r[/i] times farther away from [i]O[/i] than [i]P[/i] is. If [i]r[/i] is less than 1 then the new point is really closer to [i]O[/i], not farther away.
Dilate [i]H[/i] using [i]C[/i] as the center and a scale factor of 3. [i]H[/i] is 40 mm from [i]C.[br][br][/i]Dilate [i]K [/i]using [i]O[/i] as the center and a scale factor of [math]\frac{3}{4}[/math]. [i]K[/i] is 40 mm from [i]O[/i].
Dilate all the parts of the figure using center [i]P[/i] and scale factor [math]\frac{1}{2}[/math]
IM G Unit 3 Lesson 1 from IM Geometry by Illustrative Mathematics, [url=https://im.kendallhunt.com/HS/students/2/3/1/index.html]https://im.kendallhunt.com/HS/students/2/3/1/index.html[/url]. Licensed under the Creative Commons Attribution 4.0 license, [url=https://creativecommons.org/licenses/by/4.0/]https://creativecommons.org/licenses/by/4.0/[/url].