Translations
A translation __________ a figure.
Slides
A reflection __________ an image.
Rotation ___________ an image.
Turns
A dilation ______ or _______ an image.
enlarges or reduces
We pronounce A' as...
A'(1, 1)
Reflections do not preserve ______________
orientation
Determine the image of X(4, 1) with a rotation of 90 degrees.
X'(-1, 4)
A dilation enlarges an image when...
the scale factor is larger than 1 (k>1)
This transformation does NOT preserve orientation
reflection
Describe the following rule using the direction and spaces the image would move:
(x, y) -> (x-3, y+5)
left 3, up 5
Given A(-3, -2), determine A' if its reflected over the x-axis
A'(-3, 2)
Determine the image B(-7, -9) with a rotation 180
B'(7, 9)
Determine the coordinates of A' after a dilation of 3 on the point A(-3, 1)
(-9, 3)
A transformation that does not change size or shape
rigid motion
right 5, down 8
(x, y) -> (x+5, y-8)
Determine the pre-image of (7, -4) if it was reflected over the y-axis
(-7, -4)
Determine the image (-1, 5) rotated 270
(5, 1)
Determine the coordinate of the preimage of A'(12, -4) if the scale factor was 4.
A(3, -1)
To determine the scale factor we use this formula:
k = image/preimage
Given B(9, 1) -> B'(5, 2), determine C' under the same translation for C(3, 6)
C'(-1, 7)
A' (0, -1)
If a point in the 3rd quadrant is rotated 90 degrees, it will land in which quadrant?
Quadrant 4
Determine the scale factor given A(9, 6) and A'(3, 2)
k = 1/3
Determine the transformation based on the rule below:
(x, y) -> (-y, x)
Rotation 90 degrees