What is a composition of transformations?

A composition of transformations is when two or more transformations are applied to the same figure.

Describe the two transformations that make up a glide reflection.

A glide reflection is made up of a translation and a reflection, where the direction of translation is parallel to the line of reflection.

The composition of transformations is a glide reflection because it involves a translation and a reflection over a parallel axis.

The distance of the resulting translation is 10 units.

I can perform and describe a sequence of transformations on a figure.

1
A glide reflection is a transformation that combines a translation and a reflection.
2
Reflecting a shape over two parallel lines is the same as performing a translation, where the translation distance is twice the distance between the lines.
3
Reflecting over two intersecting lines is the same as performing a rotation, where the rotation angle is twice the angle between the lines.