The segment defined by a preimage point and its image reflected over a line forms this angle with the line of reflection.
What is a right angle (90 degrees)
100
This is the fixed point about which a figure is rotated.
What is the center of rotation?
100
This is a quantity that has both direction and length, represented by an arrow drawn between two points.
What is a vector?
100
This is what we call a transformation that consists of 2 or more transformations performed one after the other.
What is a sequence or a composition?
100
This is another word for a rigid motion that means all side lengths and angle measures are preserved.
What is isometry or congruence?
200
These three properties are preserved under reflections and all isometries.
What are angle measure, segment length, and parallelism?
200
This is the analytical representation for rotating a figure 90 degrees clockwise.
What is (x,y) -> (y,-x)?
200
If point P is on (-5,2) and point Q is on (5,3), this is the notation of a translation from a starting point P and an ending point Q.
What is T(10,1)?
200
The first translation maps J to J' and the second maps J' to J". This is the translation that maps J to J".
Translation 1: (x, y) -> (x+7, y-2)
Translation 2: (x, y) -> (x-1, y+3)
Translation: (x, y) -> (____? , _____?)
What is (x+6, y+1)?
200
A repeating pattern on a shirt is most likely created after this transformation of a single image.
What is a translation?
300
This is the image of (2, 4) reflected over the line y = x
What is (4, 2) ?
300
These are the coordinates of A' B' and C' when triangle ABC is rotated 180 degrees about the origin.
A = (-1,1), B = (2,4), and C = (2, -5).
What are:
A' = (1, -1)
B' = (-2, -4)
C' = (-2, 5)?
300
Point A (-2, 1) is translated five units down, and seven units left. This is the location of the image of A after the translation.
What is A'(-9,-4)?
300
Segment PQ has endpoints P(5, 1), and Q(3, 4).These are the coordinates of P''Q'', the image of PQ after the composition r(y-axis)(T(-2,-4)(PQ)).
What are:
P''=(-3,-3)
Q''=(-1,0)?
300
A figure reflected over the y-axis and then the x axis will look like this single transformation.
What is a rotation of 180 degrees?
400
This is the only property NOT preserved by reflection.
What is orientation?
400
These are the images of the points (3,5) and (-2, 7) rotated 90 degrees about the origin.
What are (-5,3) and (-7,-2)?
400
The translation T(4,1) is applied to point A(-1, 3). If A' = (2x + 1, 4), this is the value of x.
What is x=1?
400
This is the notation of the sequence determined by a rotation of 270 clockwise followed by a reflection over the line y=x of a triangle LMN.
What is r(y=x)(R(-270)(LMN))?
Alternately,
What is r(y=x)(R(90)(LMN))?
400
Game designers use this type of transformation so that they don't have to re-create a character every time it moves.
What is translation?
500
This is what the line of reflection is in relation to a line between a pre-image point A and its corresponding image A’.
What is a perpendicular bisector?
500
This is what you call the rotational symmetry of a figure plus its identity symmetry.
What is order?
500
A vector translation maps point P to P'. If P is located at (-3,7), and the location of P' could also be a rotation of 180 degrees about the origin, this is the analytical representation of the vector.
What is (x,y) -> (x+6,y-14)?
500
The point T(-3, -7) is rotated 90 degrees about the origin, then reflected over y-axis. These are the coordinates of T'.
What is (7, 3)?
500
The following letters of the alphabet all have this in common:
H I N O S X Z