In the lesson, you used the following matrices to create reflections:

Across x-axis: A =
[1 0]
[0 −1]

Across y-axis: B =
[-1 0]
[0 1]

Across line y = x: C =
[0 1]
[1 0]

Across line y = −x: D =
[0 -1]
[-1 0]

All these reflections resulted in ________ figures.