1. Chapter 9 Review
NEW!

2. Complete examples 1 and 2 on pages 131 and 132 of your workbook.

3. Example 3: Applying Transformations
Prove that the triangles with the given vertices are congruent.
A(1, 2), B(2, 1), C(4, 2)
P(-3, -2), Q(-2, -1), R(-3, 1)
△ ABC can be mapped to △ A′B′C′ by a 90o rotation (x, y) → (–y, x); and then △ A′B′C′ can be mapped to △PQR by a translation: (x, y) → (x – 1, y – 3).

4. 4 – 1 Graded Classwork
Workbook Page 134 ALL
For #1-3, write the congruency or non-congruency statement and use specific transformations (lines of reflection, angle of rotation, etc.) to justify answer
For #4-6, write the specific transformations in words (reflection, rotation, translation) and in coordinate notation
What ever you don’t finish is homework due next class.