1. Transformations in a Coordinate Plane
1-7
Transformations in a Coordinate Plane
Graph transformations in the coordinate plane.

2. Definitions

3. Preimage
Image
We would say that Figure A was _______ onto Figure A’ through a ___________________________

8. Ex. 6
A figure has vertices at A(1,-1) B(2,3) & C(4,-2). After a transformation, the image of the figure has vertices at A’(-1,-1),
B’(-2,3) and C’(-4,-2). Draw the preimage & image. Then identify the transformation.

10. Ex. 7
Find the coordinates for the image of triangle ABC after the translation

12. Assignment

13. Ex. 8
Ex. 4 on pg. 52 #4 Check it out.

14. (3, 4)

15. (-3, 5) (-1, 4) (5, 3) (4, 1) d = (x 2 – x1 ) 2 + ( y2 – y1 ) 2
EF = ( 5 – 4) 2 + (3 – 1 ) 2
KL = (-3 – (-1)) 2 + (5 – 4 ) 2 =
= (-2)
= 5
= 5

16. Translate
Reflection
Reflection
Rotation
Translate
Reflection

17. FED
BCA

18. Isometry preserves length
2a = 146
a = 73
b = 53
c = 15
4d = 32
d = 8

19. Isometry preserves length
3q = 9
q = 3
2r – 5 = 10
2r = 15
r = 7½

20. Fun With Transformations #1
Escher
Fun with Transformations

21. 7.1 Pg 399 #6-44E