For every type of transformation there is certain information that defines the transformation.

With a reflection, we just need to know **the line of reflection** (sometimes called the “mirror line”).

If we are dealing with axes, this line of reflection will often be given as an equation, like y=2 or x=3, or y=2x.

Once we know the line of reflection, the process for applying it to a shape is to take each point of the shape and repeat it at an equal distance to the other side of the line of reflection. Let’s try some

**Example**

**Exercise**

Now let’s try exercise 2 on pages 181 and 182 of the core textbook:

The answers are below: