9-1
Under a translation, what four values about the shape remain the same?
Same shape, Same size, Same angle measures, Same orientation
Change: Orientation
Same: Shape, Size, Angles
Change: Orientation
Same: Shape, Size, Angles
Under a dilation, what three values about the shape remain the same, and what changes?
Same: Shape, Orientation, Angles
Change: Size
Translate the following point 4 units left and 1 unit up:
A (3, 6)
A' (-1, 7)
Reflect the following point over the x - axis:
D (3,1)
D' (3, -1)
Rotate the following point 90 degrees:
G (1,3)
G' (-3,1)
Dilate the following point with a scale factor of 1
K (9,10)
K' (9,10)
Translate the following point 2 units right and 3 units down:
X ( -1, 5)
X' (1, 2)
Reflect the following point over the y-axis:
F (2,2)
F' (-2,2)
Rotate the following point 180 degrees:
B (-10, -5)
B' (10, 5)
Dilate the following point with a scale factor of 4
P (15, 12)
P' (60, 48)
Translate the shape 2 units right and 2 units up:
A (1,1)
B (3, 1)
C (2, 3)
A' (3,3)
B' (5,3)
C' (4,5)
C (2,2)
C' (2,-4)
Rotate the following point -90 degrees:
R (-2, 5)
R' (5,2)
Dilate the following point with a scale factor of 1/3
W (-9, 3)
W' (-3, 1)
Shape ABCD is translated 3 units right to form A'B'C'D'.
If angle B is 90 degrees what is the measure of angle B'?
90 degrees.
X' = 45
List all four rules for Rotations:
1.
2.
3.
4.
1. 90 (x,y) = (-y,x)
2. 180 (x,y) = (-x,-y)
3. 270 (x,y) = (y, -x)
4. 360 (x,y) = (x,y)
Shape EFGH is dilated with a scale factor of 2
Angle E is 90 degrees. What is the measure of angle E'?
E' = 90 degrees