# Shared Flashcard Set

## Details

Q2T2 Vocab
N/A
33
Mathematics
12/08/2011

Term
 ry: (x, y) ---> (reflection over the y-axis)
Definition
 (-x, y)
Term
 rx: (x, y) ---> (reflection over the x-axis)
Definition
 (x, -y)
Term
 ry=x: (x, y) ---> (reflection over line y=x)
Definition
 (y, x)
Term
 ry=-x: (x, y) ---> (reflection over line y=-x)
Definition
 (-y, -x)
Term
 Thk: (x, y) ---> (transforming the figure the distance of h horizontally and k verically)
Definition
 (x + h, y + k)
Term
 R90: (x, y) ---> (90 degrees rotation)
Definition
 (-y, x)
Term
 R180: (x, y) ---> (180 degrees rotation)
Definition
 (-x, -y)
Term
 R270: (x, y) ---> (270 degrees rotation)
Definition
 (y, -x)
Term
 Isometry
Definition
 The size of a figure.
Term
 Orientation
Definition
 The direction that a figure is facing.
Term
 Magnitude
Definition
Term
 Transformation
Definition
 A copy of an original polygon that has been reflected, moved, enlarged, reduced or rotated.
Term
 Prime Notation
Definition
 A way of marking transformed figures.
Term
 Dot Product
Definition
 dp = (x1 * x2) + (y1 * y2) Used to determine if two vectors are perpendicular.
Term
 Vector
Definition
 A command or instruction that has magnitude and depth.
Term
 Dot Product Theorem of Vectors
Definition
 If the dot product is zero, then the vectors are perpendicular.
Term
 Slope of Vectors
Definition
 m = difference of y / difference of x. Tells if the vectors are parallel, perpendicular or none.
Term
Definition
Term
 Magnitude of Vector
Definition
 D = √(x2 - x1)2 + (y2 - y1)2
Term
 Composite Transformation
Definition
 Combining more than one transformation.
Term
 Rotation
Definition
 Around the origin (0, 0). Can be a quarter turn, half turn, three-quarter turn and full turn.
Term
 What is the transformation method that we are using called?
Definition
 Algebraic transformations
Term
 Pre-Image
Definition
 The figure before the transformation.
Term
 Original
Definition
 The figure before the transformation.
Term
 Image
Definition
 The figure after the transformation.
Term
 Copy
Definition
 The figure after the transformation.
Term
 Glide Reflection
Definition
 Translation followed by a reflection. Translation + reflection = composite.
Term
 Reflection
Definition
 A flip of a figure.
Term
 Translation
Definition
 A slide of a figure.
Term
 Magnitude
Definition
 The size of the vector.
Term