Here is another linear sequence: 70, 60, 50, 40 … In this example the common difference is -10 , because 10 is subtracted from each term to give the next term in the sequence.

Each term in a sequence has a position. The first term is in position 1, the second term is in position 2 and so on. Position to term rule is a formula which can be used to find any term in a ...