Introducing quadratic sequences

12 questions

1. Which of these could be the first 4 terms in an arithmetic sequence?
2. Here is part of the sequence of square numbers: ... 49, 64, 81, 100, ... What is the common second difference for this sequence?
3. What is the 10^\text{th} term in the sequence with n^\text{th} term rule 5n - 6?
4. Which of these are examples of quadratic expressions?
5. In the sequence with n^\text{th} term rule 4n-2 which term has the value 46?
6. The sequence of all square numbers starts 1, 4, 9, ... what is the 20^\text{th} term in this sequence?
7. What is the 10^\text{th} term in the sequence with n^\text{th} term rule 2n^2 + 5?
8. What is the 8^\text{th} term in the sequence with n^\text{th} term rule n^2 - 2n?
9. Match up the first 5 terms in these quadratic sequences with the correct common second difference.
10. Match up the first 5 terms in these sequences with a possible sequence type.
11. Which is the correct n^\text{th} term rule for the quadratic sequence which starts: -8, -5, 0, 7, 16, ...?
12. What is the 10^\text{th} term in the quadratic sequence which starts 18, 21, 26, 33, 42, ...?

License: OGL