1 3 3 7 13 21 31 43 n n
1 Quadratic Sequences Questions 1 1 15 17 21 27 35 45 n n
2 1. Find the nth term formula for the following quadratic sequence: 7, 13, 21, 31, 43 3 1 20 24 34 50 72 100 n n
3 2. Find the nth term formula for the following quadratic sequence: 17, 21, 27, 35, 45 2 1 2 5 12 23 38 57 n n
4 3. Find the nth term formula for the following quadratic sequence: 24, 34, 50, 72, 100 3 1 14 18 28 44 66 94 n n
5 4. Find the nth term formula for the following quadratic sequence: 5, 12, 23, 38, 57 3 1 18 22 32 48 70 98 n n
6 5. Find the nth term formula for the following quadratic sequence: 18, 28, 44, 66, 94 1 3 4 8 14 22 32 44 n n
7 6. Find the nth term formula for the following quadratic sequence: 22, 32, 48, 70, 98 2 1 9 12 19 30 45 64 n n
8 7. Find the nth term formula for the following quadratic sequence: 8, 14, 22, 32, 44 2 3 9 14 23 36 53 74 n n
9 8. Find the nth term formula for the following quadratic sequence: 12, 19, 30, 45, 64 2 1 18 21 28 39 54 73 n n
10 9. Find the nth term formula for the following quadratic sequence: 14, 23, 36, 53, 74 1 1 2 4 8 14 22 32 n n
11 10. Find the nth term formula for the following quadratic sequence: 21, 28, 39, 54, 73 1 1 16 18 22 28 36 46 n n
12 11. Find the nth term formula for the following quadratic sequence: 4, 8, 14, 22, 32 1 1 7 9 13 19 27 37 n n
13 12. Find the nth term formula for the following quadratic sequence: 18, 22, 28, 36, 46 1 3 20 24 30 38 48 60 n n
14 13. Find the nth term formula for the following quadratic sequence: 9, 13, 19, 27, 37 3 1 3 7 17 33 55 83 n n
15 14. Find the nth term formula for the following quadratic sequence: 24, 30, 38, 48, 60 3 2 19 24 35 52 75 104 n n
16 15. Find the nth term formula for the following quadratic sequence: 7, 17, 33, 55, 83 3 2 2 7 18 35 58 87 n n
17 16. Find the nth term formula for the following quadratic sequence: 24, 35, 52, 75, 104 3 3 9 15 27 45 69 99 n n
18 17. Find the nth term formula for the following quadratic sequence: 7, 18, 35, 58, 87 1 3 20 24 30 38 48 60 n n
19 18. Find the nth term formula for the following quadratic sequence: 15, 27, 45, 69, 99 3 1 2 6 16 32 54 82 n n
20 19. Find the nth term formula for the following quadratic sequence: 24, 30, 38, 48, 60 3 2 12 17 28 45 68 97 n n
21 20. Find the nth term formula for the following quadratic sequence: 6, 16, 32, 54, 82 1 2 4 7 12 19 28 39 n n
3 15
Quadratic Sequences Answers 5 25
1. nth = n² + 3n + 3 2 10
2. nth = n² + n + 15 7 35
3. nth = 3n² + n + 20 12 60
4. nth = 2n² + n + 2 6 30
5. nth = 3n² + n + 14 3 15
6. nth = 3n² + n + 18 5 25
7. nth = n² + 3n + 4 11 55
8. nth = 2n² + n + 9 11 55
9. nth = 2n² + 3n + 9 10 50
10. nth = 2n² + n + 18 8 40
11. nth = n² + n + 2 10 50
12. nth = n² + n + 16 5 25
13. nth = n² + n + 7 11 55
14. nth = n² + 3n + 20 7 35
15. nth = 3n² + n + 3 6 30
16. nth = 3n² + 2n + 19 2 10
17. nth = 3n² + 2n + 2 12 60
18. nth = 3n² + 3n + 9 7 35
19. nth = n² + 3n + 20 7 35
20. nth = 3n² + n + 2 6 30