1. Translations
Teacher Twins©2014

2. Warm Up
Use rotation rules to write the ordered pairs for triangle ABC, A(3, 9) B(-2,5) C(4,-6), when it is rotated 90⁰ counter clockwise.

3. Warm Up Answers
A’ (-9,3) B’ (-5,-2) C’(6, 4)

4. Translations

5. A translation is a transformation that moves a figure a certain distance in a given direction.

6. Triangle ABC is translated 4 units right and 2 units down.

7. A (- 6, 4) A’ (-2, 2)
B (1, 3) B’ (5, 1)
C (- 3, - 2) C’ (1, -4)
Right 4 units and down 2 units
(x, y) (x + 4), (y – 2)

8. Right four units and down 2 units (x, y) (x + 4), (y – 2)
A (- 6, 4) A’ (-2, 2)
B (1, 3) B’ (5, 1)
C (- 3, - 2) C’ (1, -4)
X axis left (negative - ) or right(positive +)
Y axis down(negative -) or up(positive +)
Right four units and down 2 units
(x, y) (x + 4), (y – 2)
A (- 6, 4) A’ (-2, 2)
B (1, 3) B’ (5, 1)
C (- 3, - 2) C’ (1, -4)

9. Practice
Translate triangle ABC 3 units left and 4 units up. Write the new ordered pairs.
Triangle ABC A (-1, 4), B (0,-3), C (2, 3)

10. Closure
Write the rule for translating a figure 5 units left and 6 units down.