Dilation
Dilate the point (3, 4) about the origin with scale factor 4
(12, 16)
Reflect (-3, 7) about the x-axis
(-3, -7)
A rotation is made up of how many of what other transformation?
2 reflections
A translation is made up of how many of what other transformation?
2 reflections
What type of symmetry is shown on the board?
Line symmetry of reflection
Dilate the point (-9, 12) about the origin with scale factor 1/3
(-3, 4)
Reflect (-7, -6) about the y-axis
(7, -6)
Rotate (2, 6) cw 90°
(6, -2)
When using reflections to translate, what needs to be true about the lines of reflection?
parallel
What type of symmetry is shown on the board?
point symmetry of rotation
Triangle ABC has side lengths 2, 3, and 4. Dilate ABC by a scale factor of 7 to get DEF. What are DEFs side lengths?
14, 21, and 28
Reflect (6, -9) about the x-axis, then y-axis
(-6, 9)
Rotate (-8, 10) ccw 90°
(-10, -8)
translate the point (-5, 7) to the right 4.
(-1, 7)
What fold symmetry is depicted on the board?
4-fold symmetry
Triangle IJK has side lengths 6, 8, and 10. Dilate IJK by a scale factor of 1/2 to get triangle LMN. What are the side lengths of LMN?
3, 4, and 5
Reflect (6, -9) about the y-axis, then the x-axis
(-6, 9)
Rotate (1, 2) 180°
(-1, -2)
translate the point (3, -9) down 3 points
(3, -12)
A regular pentagon demonstrates what fold symmetry?
5
What is the scale factor of dilation from triangle UVW to XYZ when UVW side lengths are 2, 3, 4 and XYZ side lengths are 12, 6, 9.
3
Reflect (1, 2) about the line y=x
(2, 1)
Rotate (3, 9) cw 90°, then 180°
(-9, 3)
translate the point (-2, -1) to the left 6 and up 4
(-8, 5)
What type of symmetry often describes tesselations?
Translation symmetry of patterns