1. Math II: Unit 1: Transformations
Lesson 1: Translations

2. Transformations change the position, shape or size of a figure.
Two Types of Transformations:
Rigid Transformations do not affect length, area, perimeter, or angle measure of a geometric shape.
Similarity Transformations do affect the length, area, perimeter, and/or the angle measure of a geometric shape.
Pre-image vs Image:
A pre-image is the original figure before any transformation has occurred.
An image is the resulting figure after a pre-image has been transformed.

3. Translations: a transformation where a figure slides without turning or changing size and is determined by distance and direction. A B C D E A' B' C' D' E'
Pre-image
Image

4. Describe the translation of the pre-image to the image.

5. Describe the translation of the pre-image to the image.

6. Vector:
Function Rule: A B C A' B' C'

7. Vector:
Function Rule: A B C A' B' C'

8. Translations are what type of transformation?
Do you think the length, area, perimeter, or angle measures have changed during a translation?
Translations are what type of transformation? A B C A' B' C'

9. Locate the image of ∆TOP with vertices
Translated by the vector
<4, -2>

10. (x, y)  (x – 3, y - 4) Locate the image of ∆TOP with vertices
Translated by the function rule
(x, y)  (x – 3, y - 4)