In Exercises 3 and 4, graph ARST with vertices R(2, 3), S(-2, 1), and T(- 1, 5)
and its image after the composition.
3. Translation: (x, y)(x-2, y-1)
Rotation: 90°about the origin
4. Reflection: in the line x = y
Rotation: 180°about the origin
Include the process and the graph.