Vector addition and scalar multiples

1. 1.
   If a = (-1, 3), what is 5a?
2. 2.
   If a = (5, -1) and b = (-5, -3), what is a + b?
3. 3.
   If a = (-4, -1) and b = (4, 6), what is a + b?
4. 4.
   If a = (-6, 4) and b = (0, 0), what is a − b?
5. 5.
   If a = (5, 0) and b = (-4, 0), what is a − b?
6. 6.
   If a = (-2, 2) and b = (6, -2), what is a − b?
7. 7.
   If a = (0, -3), what is 4a?
8. 8.
   If a = (-3, 5), what is 4a?
9. 9.
   If a = (-1, 6) and b = (0, -3), what is a + b?
10. 10.
    If a = (0, 3) and b = (-3, 0), what is a + b?
11. 11.
    If a = (1, 5), what is 3a?
12. 12.
    If a = (-1, -5) and b = (-2, 6), what is a + b?
13. 13.
    If a = (3, -4), what is 4a?
14. 14.
    If a = (-3, 3) and b = (5, 6), what is a + b?
15. 15.
    If a = (5, 6), what is 2a?
16. 16.
    If a = (-5, -6) and b = (1, 4), what is a − b?
17. 17.
    If a = (-4, -2), what is 3a?
18. 18.
    If a = (-2, -5), what is 5a?
19. 19.
    If a = (-4, -5) and b = (6, 1), what is a + b?
20. 20.
    If a = (6, 3) and b = (-6, 3), what is a + b?

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