Rotations
(1,1) after a 180 degree rotation
(-1,-1)
(6,2) after a reflection across the x-axis
(6,-2)
You look in the mirror and see yourself staring back.
Reflection
A line segment 6 inches long is translated 4 units to the right. How long is the line segment after the translation?
6 inches
(3,3) after a 180 degree clockwise rotation
(-3,-3)
(1,1) after a reflection across the y-axis.
(-1,1)
The earth turns around the sun. (Reflection, rotation, or translation?)
Rotation
Triangle ABC is reflected across the y-axis and the image is triangle A'B'C'. Is ABC congruent to A'B'C'?
Yes
(6,1) after a 180 degree rotation
(-6,-1)
(4,-2) after a reflection across the y-axis.
(-4,-2)
You flip your quiz upside down when you are finished. (translation, reflection, or rotation)
Reflection
What does this symbol mean? ≅
Congruent
True or False: the x and y coordinates both become opposite when rotating 180 degrees about the origin.
True.
If the pre-image is in quadrant III (3) and you reflect across the x-axis, where is the image?
Quadrant II (2)
A car is driven two miles straight ahead. (Translation, Reflection, Rotation?)
Translation
A square has side length 15 cm. After a reflection across a line, what is the side length of the square?
15 cm
If the pre-image is in quadrant IV (4), where will the image be after a 90 degree counter-clockwise rotation?
Quadrant I
If the pre-image is in quadrant II and the image is in quadrant I, which axis did you reflect across (x or y)?
y-axis
The 92 bus is going down Florida Ave and gets stuck in traffic. The bus then turns around. (Translation, rotation, or reflection - CHOOSE 2)
Translation and rotation
A circle with area 9 square units is rotated 180 degrees around the origin. What is the area after the rotation?
9 square units.