Question

Which recrusive formula can be used to generate the sequence shown, where f(1)=5 and n>=1 5,-1,-7,-13,-19

Answer 1

a_n = 11 - 6n

Explanation:

you can observe every next element is smaller then the previous one by 6

a_n = 5 - 6*(n-1)

a_n = 5 - 6n + 6

a_n = 11 - 6n