Translations Section 9-2.

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Presentation transcript:

Translations Section 9-2

A translation, or glide, is an isometry that glides all points the same distance in the same direction.

If a transformation T maps any point (x, y) to (x + a, y +b), then T is a translation. Each point glides 10 units right and 2 units up. (3, -2) (-7, -4)

Another way to find a translation is to perform a reflection in the first of two parallel lines and then reflect the image in the other parallel line. A transformation made up of successive transformations is called a composition.

A glide reflection combines two isometries to produce a new transformation. This new transfomation is itself an isometry. P P’ P”

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Why did the chicken cross the basketball court to talk with the ref? Because he was calling all fowls!