Types of transformations

Reflection across the x axis

Reflection across the y axis

TranslationIf the shape is moved 6 spaces right and 4 spaces up

A

The following shape is going to be translated 8 spaces right and 5 spaces down. Where will coordinate A’ be located?

A’ (5, -1)

Dilation with a scale factor of 3

Find the scale factor that was used

2.4m

7.2m

2.4 • ? = 7.2

3

Find the scale factor that was used

8m

16m

16 • ? = 8

0.5

Find the scale factor that was usedTriangle ABC is at coordinates: A(3, 0) B(1, 4) and C(5, 0)Triangle A’B’C’ is at coordinates: A’(4.5, 0) B’(1.5, 6) and C’(7.5,0)

What scale factor was used to make the dilated triangle?

3 • ? = 4.5 1 • ? = 1.5 4 • ? = 6 5 • ? = 7.54.53

1.51

64

7.5

5All of the answers have to be the same number So the answer is…… 1.5

TranslationIf the shape is moved 6 spaces right and 4 spaces up

This co

This could look like this on your STAAR test

x + 6, y + 4

Dilation with a scale factor of 3

-1,1

-3,3