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This document contains questions on quadratic sequences. You can learn more about quadratic sequences in the entry made on the front page section; Quadratic sequences
Question 1: Quadratic sequences
- Write down the first 6 terms for the sequences defined by the following quadratic formulae.
Question 3: Using differences
- Find the first and second difference for the following sequence
sequence: -5 0 15 40 75 120 First difference: Second difference:
Question 3: Finding nth term
- Write down the nth term formula for the following sequences.
- Work out an nth term formula for the triangular numbers1, 3, 6, 10, 15, 21