The document discusses different types of transformations including translations, reflections, rotations, and dilations. It provides an example of graphing the reflection of a quadrilateral across the y-axis by multiplying the x-coordinates of each vertex by -1. The document encourages completing formative assessments and getting caught up on any missed work.

1. Yesterday we talked about
translations.
Make sure you are submitting
your formative assessments!
* IXL Q.3
* U2L1 Quiz

2. Transformations
- Translations (slide)
- Reflections (flip)
- Rotations (turn)
- Dilations (zoom)

3. Learn to transform plane figures using
reflections.

4. A reflection flips a figure across a line to
create a mirror image.

10. Example: Graphing Reflections on a Coordinate
Plane
Graph the reflection of quadrilateral ABCD
across the y-axis.
Multiply the x-coordinate
of each vertex by –1.
Rule Image
A(–4, 1)A’ (–1  –4, 1) A’(4, 1)
B(–2, 1)B’ (–1  –2, 1) B’(2, 1)
C(–1, –2)C’ (–1  –1, –2) C’(1, –2)
D(–4, –3)D’ (–1  –4, –3) D’(4, –3)
A’B’
C’
D’

11. Today we learned to transform plane
figures using translations.
U2L2: Read this
U2L2: Watch this
*Use Friday to get caught up on work!!!