What is the translation rule for the picture below?
What is <x - 1, y - 6>
Rotate the figure Z(-7,2), A(-2,-2), B(-8,-6) 180 degrees about the origin. What are the vertices of the image after the rotation?
It is Z'(7,-2), A(2,2), B(8,6)
The size of the pre-image and image is ______ after a reflection across the y-axis.
the same, congruent
The transformation in which an image is flipped across a line
What is reflection?
What is the translation rule for the picture below?
<x - 5, y + 0>
Rotate the figure Z(-4,0), L(0,-3), J(-5,-2) 90 degrees counterclockwise about the origin. What are the vertices of the image after the rotation?
Z'(0,-4) L'(3,0) J'(2,-5)
The ________________ is the imaginary line over which a figure will be reflected.
LINE OF REFLECTION (either x or y)
A shape was transformed from (4,2) to (2, -4). What transformation was performed?
What is 90 degrees clockwise rotation
The vertical and horizontal lines about which all translations occur
What are the X and Y axes?
Rotate the figure represented by the points H(9,7) U(7,4) G(2,6) 180 degrees about the origin. What are the vertices of the image after the rotation?
Image: H'(-9,-7) U(-7,-4) G(-2,-6)
Reflect the figure represented by points A(1,1), B(3,3) and C(5,5) across the x axis. What are coordinates for the image?
A'(1,-1),
B'(3,-3),
C'(5,-5)
Which translation's movement is similar to that of a mirror's
What is Reflection
The three main geometric transformations which preserve congruence are __________.
What is Translation, Rotation, and Reflection
Translate the figure D(4,8) O(6,8) G(8,1) 2 units to the left. What are the ordered pairs for the image?
What is D'(2,8) O'(4,8) G'(6,1)
True or false: It's possible to rotate a figure around any point on the coordinate plane.
True. You can create a "POINT OF ROTATION" at any point on the graph.
What axis was the following figure reflected over?
A( -5, 8) B(-5, 2) C(-3, 3)
A' (5, 8) B' (5, 2) C' (3, 3)
What is the y-axis?
What is the point shared by the pre-image and image?
What is (-1, -5)?
This transformation changes a figure's position but not its orientation.
Translation
What is the translation rule used to turn J(-3,1), F(-2,3), N(-2,0) into J'(4,0), F'(5,2), N'(5,-1)?
What is a translation 7 units right and 1 init down
Name another degree measurement and direction that would accomplish a 90 degree clockwise rotation.
What is 270 degree counterclockwise?
If a figure is reflected over the x-axis, it can also be reflected over the y-axis at the same time, just like a translation
Our TEKS say that our usual point of rotation is ______.
The origin
Describe in your own words the difference between similar figures and congruent figures.
Similar = same _______, not necessarily same _____. Congruent = same _____, same _______.
Similar = same SHAPE, not necessarily same SIZE. Congruent = same SHAPE, same SIZE.