1). Transformation
Ans: Changing a figure in some way. Size, orientation or location may change.
2). Translation
Ans: Moving a figure from one location to another without changing its size, shape or
orientation.
3). Rigid motion
Ans: Moving an object without altering its shape or size.
4). Reflection
Ans: Mirror image of a figure shown directly opposite its line of reflection without
changing its shape or size.
5). Rule for reflection across the x-axis
Ans: (x, y) --> (x, -y)
6). Rule for reflection across the y-axis
Ans: (x, y) --> (-x, y)
7). Rule for reflection across line y=x
Ans: (x, y) --> (y, x)
8). Rotation
Ans: Rotating a figure around a fixed point
9). Rule for rotation of 90 degrees clockwise around the origin
PaperStoc.com Page 1 of 3