REFLECTIONS
What term is used to describe the original figure before any transformation or reflection takes place?
The pre-image.
A rotation is...?
A turn around a fixed point called the center of rotation.
What is the correct meaning of translations?
To vertically or horizontally slide a figure.
If <PQR= 141, find each measure
PQS= (13x+4) and SQR=(10x-1)
X= 10
PQS= 82
SQR=59
What can you catch but not throw?
A cold
If you reflect the point A(4, -7) across the x-axis, what are the coordinates of the new image, A'?
(4, 7)
The most common center of rotation is...?
The orgin
Another word for translation is?
Slide
IF DEF is a straight angle, DEG= (23x-3), and GEF= (12x+8), find each measure.
x=5
DEG=112
GEF=68
DEF=180
What has a head and tail but no body?
A coin
Because reflections preserve distances, angles, and shapes, they belong to what class of rigid transformations?
An isometry
What is the formula for 90 degree counterclockwise?
(-y,x)
_____ represents the horizontal shift
H
if ABF=(6x+26), EBF= (2x-9), and ABE= (11x - 31), find ABF.
X=16
ABF=122
What word is spelled incorrectly in every dictionary?
Incorrectly
A point at (3, 5) is reflected to (5, 3). What is the exact equation of the line it was flipped over?
y = x
What is the formula for 270 degree counterclockwise?
(y,-x)
_____ represents the vertical shift
K
R and S are complementary angles. if R= (12x - 3) and S (7x - 2), find R
R=57
What gets wetter the more it dries?
A towel
If you reflect the point P(-2, 6) across the vertical line x = 3, what are the coordinates of the resulting point P'?
(8, 6).
What is the formula for 270 degrees about the origin?
(-y,x)
What is the coordinate notation (according to the stash) of translations? Arrows cannot be use; use dashes.
(X,Y) - (X+H, Y+H)
P and Q are supplementary angles. If P= (4x + 1) and Q= (9x - 3), find M.
Q= 123
When is Aniyah birthday?
February 25th.