Transformations
Transformation Know-how
What do you see?
Technical Terms
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?
200
A reflection
200
A point P(4,1) is translated 1 unit right and 2 units up. What is the coordinates of P' ?
P'(5,3)
200
Identify the transformation shown below.
Reflection
200
Rigid motions, such as translations, reflections and rotations, all produce images that are the same size and shape, also known as _____________, to their pre-image.
Congruent
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
What are rigid transformations? (They produce images that are congruent to the pre-image).
What are translations, reflections and rotations?
400
A transformation that creates an image that is the same shape, but a different size from before.
A dilation
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
500
The picture below appears to show this type of transformation.
Dilation
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
How many times bigger/smaller is the blue triangle from the black triangle?
2 times bigger
500
What does a dilation do to a drawing?
Enlarges or reduces its size (makes it bigger or smaller)