In Exercises 5-12, let P = (-2, 2), Q = (3, 4), R = (-2, 5), and S = (2, -8). Find the component form and magnitude of the vector. 5. PQ 6. RS 7. OR 8. PS 9. 20S 10. ( V2) PR 11. 3OR + PS 12. PS - 3PQ In Exercises 13-20, let u = (-1, 3), v = (2, 4), and w = (2, -5). Find the component form of the vector. 13. u + v 14. u + (-1)v 15. u - W 16. 3v 17. 2u + 3w 18. 2u - 4v 19. -2u - 3v 20. -U - V