# Alg1 per2 5 18 transformations

## by Collaborative for Teaching and Learning

• 280 views

### Categories

Uploaded via SlideShare as Microsoft PowerPoint

### 1 Embed2

 http://www.slideshare.net 2

### Statistics

Likes
0
1
0
Embed Views
2
Views on SlideShare
278
Total Views
280

## Alg1 per2 5 18 transformationsDocument Transcript

• Transformations
Leslie Paytes
2009
• What is a transfomation?
A transformation changes the position or orientation of a figure
a transfomation changes the position or orientation of a figure
• What do you call the resulting shapes of a transformation?
The resulting shapes are called images of the original. Each image is read as prime, double prime, triple prime...
• Instruction- Vocabulary-Move Mathman to reveal definition
Translation
figure slides along a straight
line without turning
Reflection
the figure flips across a line of reflection,
resulting in the mirror image
Rotation
figure turns around a fixed point
• Translation- moving in a straight line
without turning
Graph a triangle at
A(-3,2)B(-5,2)C(-5,5)
Graph the translation of
this triangle using
the rule
(x',y')=(x+2, y-4)
• Reflection: Flip the image across a
line to create a mirror image of
the original
Graph an arrow
A(-4,1), B(-6,3) C(-5,6)
D(-3,6), E(-2,3)
Reflect over the line y=-2
• Rotation: the figure rotates around a
fixed point
Rotate triangle ABC 180 degrees around the origin
A(-3,1)B(-7,1)C(-7,7)
Click on grid to see
rotated figure