Definitions
This is also known as a "slide"
Translation
Point A(1,1) is translated 7 units to the right. What are the coordinates of its image?
A'(8,1)
Point A(9,-10) is reflected over the x-axis. What are the coordinates of its image?
A'(9,+10)
Point A(-2,3) is rotated 180 degrees about the origin. What are the coordinates of its image?
A'(+2,-3)
Look at figures ABCDE and LMNOP. What type of transformation is taking place?
Reflection
This is also known as a "turn"
Rotation
Point B(-3,-4) is translated 5 units down. What are the coordinates of this image?
B'(-3,-9)
Point A(9,-10) is reflected over the y-axis. What are the coordinates of its image?
A'(-9,-10)
Point A(-2,3) is rotated 90 degrees counter clockwise about the origin. What are the coordinates of its image?
A'(-3,-2)
Look at figures ABCDE and LMNOP. <A corresponds to which angle in LMNOP?
<L
This is also know as a "flip"
Reflection
Point C(-3, 3) is translated 6 units to the right and 8 down. What are the coordinates of this image?
C'(3,-5)
Point B(-8,6) is reflected over the x-axis then reflected again over the y-axis. What are the coordinates of its image?
B'(8,-6)
Point A(-2,3) is rotated 90 degrees clockwise about the origin. What are the coordinates of its image?
A'(3,+2)
Look at figures ABCDE and LMNOP. What is the angle measurement of <P?
<P=130 degree
When a side is the same length to its corresponding side on a different figure, they are __________.
congruent
Translate triangle DEF 3 units left and 1 unit up. What are the coordinates of the image?
D'(-4,5), E'(-4,1), and F'(0,3)
Reflect the triangle JKL over the x-axis. What are the coordinates of the image?
J'(-4,3), K'(-1,4), and L'(-2,7)
Point A(-2,3) is rotated 270 degrees clockwise about the origin. Then translated 2 units left and 3 units up. What are the coordinates of its image?
A'(-5,1)
Look at figures ABCDE and LMNOP. What is side ON congruent to for figure ABCDE?
side CD
Translation, reflection, and rotation are examples of these.
Rigid motions
or
Transformations
Describe the translation below,
K(2,3) -> K'(5,-1)
Point K is translated 3 units to the right and 4 units down.
Describe the reflection below,
X(6,-7) -> X'(-6,-7)
Reflected over the y-axis.
Point A(-2,3) is rotated 90 degrees clockwise about the origin. Then reflect over the x-axis. What are the coordinates of its image?
A'(3,-2)
Look at figures ABCDE and LMNOP. What is the sum of<L, <M, and <N?
280 degrees