Sequences? Not sure why an algebraic formula is different from a recursive.

Guest Mar 1, 2018

#1**+1 **

A recursive formula can be used to find a term based upont the previous term

An algebraic formula can be used to find * any* term

First one

a_{n} = 5 + 5(n - 1) where n is the nth term

Second one is a geometric series

a_{n} = 3^{n} where n is the nth term

Last one

a_{n} = n

____ where n is the nth term

n + 1

CPhill Mar 1, 2018