When asked to find the n-th term of a linear sequence, you are asked to find the rule or the formula that allows you to find any term in the sequence.
This formula is of the form an + b; where the following criteria must be met:
- ‘a‘ is any positive or negative number (but not 0)
- ‘b‘ is any positive or negative number (can be 0)
- ‘n‘ must be a positive integer (whole number)
To find the n-th term for a sequence you need to go through a few steps.
EXAMPLE I – Sequence in increasing order
EXAMPLE II – Sequence in decreasing order