Presentation on theme: "Blue Day – 1/6/2015 Gold Day – 1/7/2015. Transformations Translations Reflections Last day to do a schedule change is Friday, January 16, 2015."— Presentation transcript:
Transformations Translations Reflections Last day to do a schedule change is Friday, January 16, 2015. Student Holiday – Monday, January 19, 2015
a change in its position, shape, or size. preimage the resulting figure after changes are made. isometry a transformation that maps all points the same distance and in the same direction. composition of transformations
It is common practice to name shapes using capital letters: It is common practice to name transformed shapes using the same letters with a “prime” symbol:
A translation "slides" an object 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. Translations are SLIDES.
Let's examine some translations related to coordinate geometry. The example shows how each vertex moves the same distance in the same direction.
What are the coordinates for A, B, C? What are the coordinates for A’, B’. C’? How are they alike? How are they different?