To determine whether the formula = − 4 with = 10 is explicit or recursive, let’s look at the definitions:
Explicit Formula
An explicit formula provides a direct calculation for the n-th term of a sequence. It gives you in terms of alone, without needing to reference previous terms in the sequence.
Recursive Formula
A recursive formula defines each term in the sequence based on the previous term(s). It usually includes:
A base case (or initial condition) that provides the value for the first term (or terms).
A recursive rule that shows how to calculate the n-th term from the ()-th term (or earlier terms).
Analysis of = − 4 with = 10
Recursive Formula: The given formula =