Transformations I CAN: Use the vocabulary of transformations.

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Presentation transcript:

Transformations I CAN: Use the vocabulary of transformations. Identify the 4 isometries. Decide whether a transformation is an isometry. Develop a definition of reflection.

What is a Transformation A Transformation is a change in a figure’s position, shape, or size.

There are 2 kinds of transformations. Isometry : a transformation of a figure that does not change the size. It is often called a rigid motion. Not an isometry: a transformation that does change the size (for example, a dilation or a distortion)

Here are some examples. Which ones are isometries?

We will study dilations later. For now, we will focus on isometries, or rigid motions.

The language of transformations.

Please turn to page 477 in your book.