SOLUTION: if A1 =-5 and d=8 (a)write an equation for the nth term and (b) the first 3 terms

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Question 1155106: if A1 =-5 and d=8 (a)write an equation for the nth term and (b) the first 3 terms
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Index n for each term,
Term number 1 starting with n=1,
-5%2B8%28n-1%29

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if a%5B1%5D+=-5 and d=8
(a)
an equation for the nth term is:
a%5Bn%5D+=a%5B1%5D+%2B%28n-1%29d
a%5Bn%5D+=-5+%2B%28n-1%298-> an equation for the nth term

and
(b) the first 3 terms are:
a%5B1%5D+=-5
a%5B2%5D+=-5+%2B%282-1%298=>a%5B2%5D+=-5+%2B8=>a%5B2%5D+=3
a%5B3%5D+=-5+%2B%283-1%298=>a%5B3%5D+=-5+%2B2%2A8=>a%5B3%5D+=-5%2B16=>a%5B3%5D+=11