Translations
What are the 4 directions that translation move in?
Up, Down, Left, and Right
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
(3,2)
Besides tracing the shape and labeling the letters, what else do you need to draw on your tracing paper to know how many degrees you rotated?
An arrow pointing straight up!
Name the 3 types of rigid transformations.
Translations, Rotations, and Reflections
Find the new coordinates of (2,4) if you translate it 3 units left and 2 units up.
(-1,6)
Find the new coordinates of (-4,-1) after you reflect the point over the y-axis.
(4,-1)
If you rotate the point (0,1) clockwise 90° around the origin, where will the new point be?
How do you know which figure is the pre-image and which is the image?
The image has prime symbols!
Find the new coordinates of (2,0) if you translate it 1 unit right and 3 units up.
(3,3)
If Point A is 3 units away from the reflection line, how many units away will Point A' be from the reflection line?
3 units!
After performing a rotation for Triangle XYZ, how do you label your new points?
X', Y', and Z'
Make sure you label your image with primes!
Name the 3 math tools specific to this unit that you can use for our test on Monday.
Tracing paper, Coordinate planes, and Mirrors
Describe what a "figure" is in math.
A figure is a shape that is made of lines.
If you reflect the point (0,3) across the y-axis, what will the new point be?
(0,3)
Points on top of the line of reflection don't move!
Describe a rotation that will get your points to the same spot as a 90° counter-clockwise rotation.
A 270° clockwise rotation!
What 2 things stay the same before and after you perform a rigid transformation?
Size and Shape stay the same!