Math puzzle

4. the line at which all points of a shape are moved across.
7. change in direction of a wavefront at an interface between two different media
8. the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates.
9. parallel to the plane of the horizon; at right angles to the vertical.
10. line on a graph that is drawn from bottom to top.
12. at right angles to a horizontal plane; in a direction, or having an alignment, such that the top is directly above the bottom.
13. the process of moving something from one place to another.
15. a plane figure with three straight sides and three angles

1. a thorough or dramatic change in form or appearance.
2. scale factor is defined as the ratio between the scale of a given original object and a new object
3. new (transformed) shapes
5. the point or place where something begins, arises, or is derived
6. two-dimensional grid, typically with an x-axis and a y-axis
11. the relative arrangements of points after a transformation or after traveling around a geometric figure
14. the image of a graph or shape before it is taken through a transformation