Question

4,1,-2,-5,-8
explicit formula:
recursive formula:

Answer 1

I usually start with n=0, but I'll also put the one for when you start with n=1.
Explicit: \(a_n=4-3n\) or \(a_n=7-3n\)
Recursive: \(a_n=a_{n-1}-3, a_0=4\) or \(a_n=a_{n-1}-3, a_1=4\)