Question

what are the explicit equation and domain for an arithmetic sequence with a first term at eight in the second term of 5

Answer 1

f(n) = 8 - 3f(n-1)

d : { 8 >= x }

Explanation:

Basically we know 8 is the first term, so we subtract 3 to get 5 which is the second term. Then we know d = -3. Now we that we established the formula, let's make a domain. We know x can never be greater than 8 so x is always less than or equal to 8.

:)