Transformations
Translations
Rotations
Dilations
Reflections
100
Transformation that uses a line like a mirror to reflect a figure
Reflection
100
Another word for translation is
Move
100
Another way to describe a rotation is
Turn
100
What are the two ways a figure can dilate?
Enlarge and reduce
100
What term can we use to describe a reflection
Flip
200
Name of the original figure in a transformation
Preimage
200
When you move left in the coordinate plane, numbers become more
Negative
200
States that a rotation is a rigid motion
Rotation Postulate
200
k > 1
Enlargement
200
The line that acts like a mirror in a reflection is called
Line of reflection
300
The value expressed as k when transforming via dilation
Scale factor
300
The starting point is also called the
Initial point
300
When a figure can be mapped onto itself by a rotation of 180 degrees or less
Rotational symmetry
300
k < 1
Reduction
300
Does the y = -x axis a positive or negative slope?
Negative
400
When the figure can be mapped onto itself by a reflection in a line
Line symmetry
400
Combines the horizontal and vertical components to indicate movement in a translation
Component form
400
Rays drawn from the center of rotation to a point and its image form the
Angle of rotation
400
What does a negative scale factor do?
Flips and dilates
400
How to we calculate the coordinates of P' over the x-axis?
(a, -b) or (x, -y)
500
Transformation involving a translation followed by a reflection
Glide reflection
500
P (3, 7) Q (8, 4) moves left 6 units and up 4 units. Find P' Q'
P' (-3, 11) Q' (2, 8)
500
P(1, 2) Q(3, 4) R(5, 6) undergo a rotation of 180 degrees. Find P'Q'R'
P'(-1, -2) Q'(-3, -4) R'(-5, -6)
500
k = -3/4; P (1, 4); Q (3, 5); R (2, 3); What is P'Q'R'
P'(-3/4, -3); Q'(-2 1/4, -3 3/4); R'(-1 1/2, -2 1/4)
500
What axis is this?
y = x