Skowhegan Area High School

Contemporary Mathematics In Context                                                                                      skowbutton msadbutton
Topics

Math 2 Unit 2

Composite Transformations

A Composite Transformation is a transformation that consists of more than one step to the transformation. For example, translate an object and then, do a second translation on the product, to again move the object. Also, there can be a combination of two different transformations. For example, translate the object and then perform a size transformation.

Here are the components to transform an object more than once:

Translation:
(x,y)-->(x+a, y+b)
(x+a,y+b)-->
(x+h, y+k)

OR

(x,y)-->(x+a+h, y+b+k)

Original Image

1st Translation

2nd Translation

Rotation:
(x,y)-->(-y,x)
(-y,x)-->(y,-x)

 

Original Image

1st Rotation

2nd Rotation

Reflection:
(x,y)-->(x,-y)
(x,-y)-->(-x,-y)

Original Image

1st Reflection

2nd Reflection

Size Transformation:
(x,y)-->(2x, 2y)
(2x,2y)--> (.25x,.25y)

OR

2x.25=.5

(x,y)-->(.5x,.5y)

Original Image

1st Size Transformation

2nd Size Transformation