Match the following items. 1. the positive integers term of a sequence 2. an ordering of quantities separated by commas general term of a sequence 3. the sum of the terms of an associated sequence series 4. one of the individual quantities of a sequence arithmetic series 5. a formula that yields the value of a term when that term is substituted in it natural numbers 6. a series that has a common difference between terms sequence 7. a series that has a common ratio between terms alternating sequence 8. a sequence in which each successive terms changes sign geometric series