Question

Write an explicit definition for the sequence –3, 1, 5, 9,…

Answer 1

\[\Large a_n=a+d(n-1)\]

Answer 2

Where a is the first term and d is the common difference

Answer 3

\[\Large a_n=-3+4(n-1)\]
n is what tho?

Answer 4

\(\large a_n\) is the n-th term

Answer 5

n=1 would yield the first term, n=2 would yield the second term, ...

Answer 6

I see thank you :)

Answer 7

no problem