1. Warm up Rotate P(-4, -4) 180 Rotate Q(-1, -3) 90 CCW
If a function is odd and one point on it is R(-3, 4). Name another point.
If a function is odd and one point on it is S(9, -10). Name another point.

2. Glide Reflections and Compositions

3. Compositions
When two or more transformations are combined to produce a single transformation.
The composition of 2 (or more) isometries is an isometry.

4. Glide Reflections Combining, a translation with a reflection.
If the line of reflection is parallel to the direction of translation, then it does not matter which you do first. Otherwise, order is important.

5. 1. Find the Image of a Glide Reflection
Use the information below to sketch the image of QRS
after a glide reflection. Q(2, –3), R(4, –4), and S(5, –1)
Q’’(-2, 2) R’’(-4, 1) S’’(-5, 4)

6. 2. Find the Image of a Composition
Perform the following composition on
C(2, 0), D(3, 3)
C’(2, 0), D’(3, –3)
C’’(0, –2) D’’(–3, –3)

7. 3. Find the Image of a Composition
Perform the Glide Reflection on A(–3, 5).
A’(–6, 2)
A’’(2, –6)

8. 4. Describe the composition
Rotation of 180° around the origin
Reflection across y = 1