Rotation
What is a rotation?
Turning or spinning an object
What is reflection?
When you flip across the y-axis, x-axis, y=x, y=-x.
When you translate, which direction do you move?
Up, down, right, left
What does dilation mean?
Changing the size of an object.
Rotating 90 degrees clockwise is equivalent to what counterclockwis?
270 degrees
Reflect the endpoint (2,-4) across the y=x axis
(-4,2)
What is the definition of translation?
Moving an object without affecting its mass
What does it do?
It makes an object smaller or larger.
Rotate (3,7) and (9,2) 180 degrees counterclockwise.
(-3,-7) (-9,-2)
An image ABC is reflected across the y-axis. A is (2,3), B is (4,6), and C is (2,6). Where is the pre-image located?
(2,-3) (4,-6) (2,-6)
(4,-3) given the coordination. If you were to translate 3 down and 5 left what would the new coordinate be?
(-2,-6)
Dilate ABC by 4 inches.
A (2,3) B (2,6) C (5,3)
A’ (8,12) B’ (8,24) C’ is (20,12)
Given these points, (3,7) and (9,2), what degree of rotation would it take to get these points, (-3,-7) and (-9,-2)
180 degrees counterclockwise
The image ABCD was reflected across the x-axis then the y-axis. A” is (-2,-3), B” is (-4,-4), C” is (-4,-5), and D” is (-2,-6). What is A’ B’ C’ and D’
A’ (2,-3) B’ (4,-3) C’ (4,-16) D’ is (2,-6)
A (6, 5) B (2,5) C (2,7)
A’ (2,3) B’ (2,-2) C’ (4,-2)
determine the translation.
3 down and 3 left.
A Dilation of 1/4