Dilations
A scale factor of negative 5 will result in what transformation
Scale factor must be greater than 0.
What happened to the shape with this translation?
(x+3, y)
Shift right 3 units
(x-4), (y+3)
Translation down 4 units, and up 3 units
the original figure before transformation
pre-image
A change in size
Dilation
A scale factor of 3 will cause the size of my shape to
triple
What happened to the shape with this translation?
(x, y-4)
Shift down 4 units
(2x, 2y)
dilation with a scale factor of 2
coordinate plane
A change in position by shifting or sliding
Translation
A scale factor of 2 would cause what type of dilation?
What happened to the shape with this translation?
(x-7, y)
Shift left 7 units
Transformation that causes (1, -2) to become (-1,-2)
Reflection over the y-axis
What ordered pair represents a 180 degree rotation?
(-x,-y)
The image mirrors the pre-image
Reflection
A scale factor of 1/4 would cause what type of dilation?
Reduction
What happened to the shape with this translation?
(x, y+8)
Shift up 8 units
Triangle ABC is congruent with Triangle DEF. Angle B is congruent with angle _?
E
Solve for x.
5x+93=243
x=30
Turning around the origin
Rotation
Point A (2, -4) is dilated by a scale factor of 1/2, what is the ordered pair for Point A'?
(1, -2)
What happened to the shape with this translation?
(x+3, y-6)
Shift right 3 units, and down 6 units
270 degree rotation counterclockwise or 90 degrees clockwise
How many degrees are in a triangle? Square?
180, 360
DOUBLE JEOPARDY
Sides in the same relative positions on the pre-image and the image
Corresponding Sides
Write the algebraic notation for a dilation with a scale factor of 3
(x,y) --> (3x,3y)
DOUBLE JEOPARDY:
What happened to the shape with this translation?
(x-4, y+8)
Shift left 4 units and up 8 units
Using (1/2x, 1/2y), what is my new ordered pair?
(-4,6)
(-2,3)
What year and day was America founded?
July 4, 1776
If two figures have corresponding sides and angles but are not the same size they are _ but not _
similar but not congruent
DOUBLE JEOPARDY
What is the scale factor of the following dilation:
A(6, -12) --> A'(2, -4)
1/3
What happened to the shape with this translation?
(x-5, y-5)
Shift left 5 units and down 5 units
Name all 4 transformations
Dilations, Translations, Reflections, Rotations
How many weeks are in a year?
52
movement that preserves congruence
rigid motion