Alg1 per2 5 18 transformations

Transformations

2009

Leslie Paytes

What is a transfomation?

a transfomation changes the position or orientation of a figure

A transformation 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

figure slides along a straight line without turningTranslation

the figure flips across a line of reflection, resulting in the mirror imageReflection

Rotationfigure 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 originA(-3,1)B(-7,1)C(-7,7)

Click on grid to see rotated figure