Reflections
Rotations
Translations
Rules
100
When reflecting an image it is like the image is looking in a ________.
Mirror
100
What is the keyword associated with rotations?
Turn
100
What is the keyword with translations?
Slide, move, shift
100
What is the rule for rotating an image 180 degrees?
(-x , -y)
200
Reflect the point (3, 5) across the y axis
(-3 , 5)
200
What is the point (4,1) rotated 180 degrees
(-4, -1)
200
Translate the point (2,3) up 4 and to the right 2
(6, 5)
200
What is the rule for reflecting a point over the y axis?
(-x , y)
300
Reflect the point (2, -1) across the x axis
(2, 1)
300
What rotation occurred?
Rotation 90 degrees clockwise.
300
Describe the translation that occurred to get point A (-3, 4) to point A' (1, -2)
A translation right 4 units, down 6 units
300
What is the rule for reflecting a point over the x axis?
(x, -y)
400
Reflect the point (-4, 6) across the line y = 2
(-4, -2)
400
Rotate the point (-3, 5) 90 degrees counterclockwise.
(-5,-3)
400
Explain a real world example of translation
elevator going up or down, cars driving down the road, plane flying in the air, moving pieces on game board
400
What is the rule for rotating an image 90 degrees clockwise?
(y, -x) Swap the numbers then flip the sign of the second number
500
Reflect the point (7 , 4) across the line x= 2
(-3 , 4)
500
Rotate the points A (3, -4) and B (6, -2) 90 degrees clockwise.
A' (-4, -3) and B' (-2, -6)
500
Describe the translation shown by the picture from shape X to shape Y.
A translation right 8 units, down 5 units
500
What is the rule when rotating an image 90 degrees counterclockwise?
(-y, x) Swap the numbers flip the sign of the first