1. Transformations
Sections

2. What is a transformation???
When figures in a plane are rotated, reflected, or translated to produce new figures.
The new figure is called the IMAGE and the original figure is called the PREIMAGE
There are four basic formations: reflections, rotations, dilations, and translations.

3. Dilation
When a figure can be enlarged or reduced and are similar to each other

4. Rotation A figure that can be turned from a fixed point
The center of rotation is assumed to be the origin.
A positive angle of rotation turns the figure counterclockwise,
a negative angle of rotation turns the figure in a clockwise direction. 
The figure does not change size.
               

5. Rotation cont…
a negative angle of rotation turns the figure in a clockwise direction. 
Rotations are isometric. Which is when the figure does not change size.

6. Translations
When an object "slides" a fixed distance in a given direction. 
The original object and its translation have the same shape and size, and they face in the same direction

7. Reflections Reflection is simply a flip.
Under a reflection, the figure does not change size.  It is simply flipped over the line of reflection.

8. Sources http://mathworld.wolfram.com/Dilation.html