Reflection
Reflection is when we ____ a figure over a line
What is flip or reflect a figure over a line?
The general rule for this rotation of an object is (x, y) --------> (-y, x)
What is 90 degrees?
Translations are often referred to as _______.
What is slides or glides?
There are four main types of transformations.
What are translation, rotation, reflection and dilation?
(x,y) to (-x,y)
What is a reflection over the y-axis?
Rotation is when we _______ a figure a certain degree around a point.
What is rotate or move in a circular motion?
Translation is when we ______ a figure in any direction
What is slide or shift?
A translation is a type of __________ that moves each point in a figure the same distance in the same direction
What is transformation?
(x,y) to (x,-y)
What is a reflection over the x-axis?
A rotation of 180 degrees moves a point on the coordinate plane by _________ each coordinate.
What is nagating, or inverse, or changing + to -, or - to +.
In a translation, every ________ of the object must be moved in the same ______ and for the same _______.
What is in a translation, every point of the object must be moved in the same direction and for the same distance?
The original figure in a transformation.
What is a parent function or pre-image?
The reflection of the point (a,b) across the line y = x is ______.
What is (b,a)?
Rotation
(x,y) (y,-x)
What is a 270 degree rotation
Translations are examples of _____ motions.
What is rigid motions?
Transformations that preserve distance and angle measurements.
What is rigid motion?
The image and the pre-image are of the same ____ and _____, so they are congruent. Rigid motion.
What is same size and shape?
Rotation
(x,y) (-y,x)
What is a 90 degree rotation?
A translation preserves _______ of segments and ________ of angles.
What is lengths/size and measures/degrees?
Assume the center of rotation to be the _______ unless told otherwise.
What is origin?