1. Warm Up:

7. Unit 2 - Transformations Lesson 17.2 Similarity Transformations

8. No. A dilation could make the heart bigger, but it couldn’t make the heart rotate.
No. The shape stays the same, but the size changes.

9. Margins of pg. 249: Add the following: RECALL: r stands for reflection
T stands for Translation
R stands for Rotation
Rotation Rules (clockwise):
90o (x, y)  (y, -x)
180o (x , y)  (-x, -y)
270o (x, y)  (-y, x)

10. Things to remember:
Multiple transformations on same grid/with same figure
Work from the inside out (right to left)
Label original points, plot on new axis.
Perform the reflection over the line y = 1 New coordinates:
Dilation, k = 2 New Coordinates:
PAY ATTENTION TO WHAT EACH GRAPHS AXIS COUNTS BY

11. Label original points, plot on new axis.
Dilation, k = New coordinates:
Rotation CCW 90 (270CW) New Coordinates:
PAY ATTENTION TO WHAT EACH GRAPHS AXIS COUNTS BY

12. Label original points, plot on new axis.
Perform the reflection over the line y = 1 New coordinates:
Translation (x,y)  (x +2, y – 2) New coordinates:
Dilation, k = 4 New coordinates:
They’re the same shape as the original, but not the same size.

15. Homework: Pg 251 # 11 & 12 Do in the book on the same coordinate grid
Clearly label each problem
You must attempt every problem for full credit.
Whatever isn’t finished is homework.