Puzzle Man

4. a transformation which has the same effect as a mirror.
7. a process by which one figure, expression, or function is converted into another one of similar value.
10. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
11. the direction or position of something, or the direction of movement, relative to a fixed point. It is usually measured in degrees, typically with magnetic north as zero.

1. the branch of mathematics which uses letters and symbols to represent numbers or other mathematical objects, and the relationships between them.
2. The position of a point on a grid can be given by a pair of numbers which are its distances from two lines called the x-axis and the y-axis.
3. a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.
5. a transformation which changes the size of an object without changing its shape, rather as a projector enlarges the details of a photographic slide onto a screen.
6. a plane figure with eight straight sides and eight angles.
8. a transformation which moves points so that they stay the same distance from a fixed point, the center of rotation. The points are all turned through the same angle about the center and appear to move along arcs of concentric circles.
9. a starting point. It is the zero mark on a number line, or the point where coordinate axes cross.