How do we graph transformations that are reflections?

Reflections. Simple term right? You look in any mirror and you've got your answers right there.

In all seriousness, reflections are pretty easy to graph. First of all, you need to know what a reflection is. Another easy term that you should know if you were paying attention in Geometry class.
A reflection is a figure flipped over a line of symmetry, and what is a line of symmetry you ask?
It is the line that can cut a figure or shape equally in two or more pieces. Think of a pizza pie being cut into eight slices, or a pie. You just got hungry didn't you?
Next a reflection will have a line of reflection, meaning that it will be the same number spaces away from what ever line is dividing it. Reflections are calculated by the terminology ry=x
"r" is the term for reflection, "y" indicates that the image is being flipped over the y-axis, and "x" is the variable.
So a shape like this would be flipped three spaces away over the y-axis from its original space.

Pretty easy huh? And I thought I was going to have to give you a whole lecture about it.

Later Days.