Question

1. What are the first five terms of the sequence given by the formula an = 5n + 1?
1, 5, 9, 13, 17
6, 11, 16, 21, 26
5, 10, 15, 20, 25
5, 6, 7, 8, 9

2. Write a recursive definition for the sequence 8, 6, 4, 2, …
a1 = 8; an= an–1 − 2
a1 = 2; an= an–1 + 6
a1 = 8; an= an–1 + 2
a1 = 2; an= an–1 + 8
3. Write an explicit definition for the sequence −2, 1, 4, 7, …
an = –2 + 3n
an = –2 + (n – 3)
an = –2 + (n – 3)
an = –2 + 3 (n – 1)

Answer 1

1)6,11...
2.)what is that a -1?
3)an=-2+3(n-1)
i believe those are the answers
also, i didn't understand your notation for problem 2.

Answer 2

answer for second:
a1 = 8; an= an–1 − 2

by the way u understaood how we got dese???