Transformations
Transformation Know-how
What do you see?
Technical Terms
TR&R
100
This transformation slides every point on an object the same distance in the same direction (along a vector).
A translation
100
The line across which the rectangle in the picture below was reflected is often called this.
The line of reflection
100
Identify the transformation below.
Translation
100
This is the general term that is used to refer to any translation, reflection, rotation or dilation.
What is transformation?
100
What is the one-word definition for translation?
Slide
200
A reflection
200
A point P(4,1) is translated 1 unit right and 2 units up. What are the coordinates of P' ?
P'(5,3)
200
Identify the transformation shown below.
Reflection
200
Translations, reflections and rotations all produce images that are the same size and shape, also known as _____________, to their pre-image.
Congruent
200
Translations, reflections, and rotations are all ...
Transformations
300
A transformation in which an object turns around a fixed center point.
A rotation
300
Rotations come in two different varieties. When a plane figure is rotated as shown below, it is said to have been rotated this direction.
What is counter-clockwise?
300
Which triangle in the picture below shows a 90 degree counterclockwise rotation of triangle A.
Triangle D
300
"Turn" is a synonym for
Rotation
300
The original figure is called the
preimage
400
What is the notation symbol used to differentiate the preimage from the image?
prime mark
400
Rotations come in two different directions. When a figure is rotated as shown below, then it is being rotated _________ .
Clockwise (CW)
400
Which rigid transformation is depicted in the picture below?
A reflection
400
What is the proper term for a figure that has been transformed (the name of the object after a transformation)?
An image
400
Find the new coordinates of (3,-2) after you reflect the point over the y-axis.
What is (-3,-2)?
500
What direction does adding to the x-coordinate move a figure?
To the right!
500
What is the proper name for the point around which the figure in the picture below turns (Point P).
The center of rotation
500
rotation 90° clockwise about the origin
500
What do you call it when there is more than one step to a transformation problem? (EXAMPLE: Translate the figure, then rotate it)
A sequence of transformations
500
Find the new coordinates of (5,4) after you rotate the point 180 degrees.
What is (-5,-4)?