Transformations

Aim: how do we identify transformations?

Transformation: Transformation is when you move a geometric figure.

There are four types of transformation which are the following : translation, rotation, dialation, and reflection.

Translation : when every point is moved in the same direction as well as the same distance.

Reflection: Figure is flipped over a line of symetry.



Rotation: Figure is turned over around a single point.

 

Rotation of 90°:
Rotation of 180°:	(same as point reflection in origin)
Rotation of 270°:

Dialation: An enlargement or reduction in size of a figure.


        The reflection of the point (x,y) across the x-axis is the point (x-y)


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The reflection of the point (x, y) across the y-axis is the point (-x, y). Questions: Coordinates (4,-6) what is the point after rotation of 180 ??? Answer: (-4,6)