1. Plotting Points and Transformations

2. Warm-up
What is 7% of 28?
40% of 36 is what?

3. Plotting Points
A (5, 1)
B (-2, 4)
C (0, -4)
D (-3, -1)
E (2, 0)

4. Give the coordinates. B C D A E

5. Find the perimeter of the rectangle formed by connected the points A (1, 2) B (4, 2) C(1, 5) D (4, 5)

6. Transformations – movements of the geometric figure
Pre-image – position of the figure before the transformation.
Image – the position of the figure after the transformation.

7. Types of Transformations
Reflection – figure is flipped over a line

8. Types of Transformations
Translation – (slide) -figure is slid in any direction

9. Types of Transformations
Dilation – a figure is enlarged or reduced

10. Types of Tranformations
Rotation – a figure is turned around a point

11. Point P(4, 3) is translated 5 units to the left and 2 units down
Point P(4, 3) is translated 5 units to the left and 2 units down. Write the coordinates of the image P’.

12. A translation slides P (-5, -2) 8 units to the right and 4 units up, write the coordinates of the image P’.

13. What are the coordinates of the image of triangle ABC if it slides 3 units right and 2 units down?

14. Triangle BAC has coordinates B (3, 4), A (9, 2) and C (5, 6)
Triangle BAC has coordinates B (3, 4), A (9, 2) and C (5, 6). State the coordinates of the image of triangle BAC after a slide of the triangle 4 units to the left and 3 units up.

15. Rotation
Rotation of 180º.

16. Reflection – flip over a line
Two flips is the same as rotating the original figure 180º clockwise about the origin.

17. Reflect about the y-axis

18. Reflect about the x-axis.

19. Rotate the figure 180º about the origin.

20. Homework
Worksheet