Math 8 Sequences Help - Please Help

[AbhiKap]

Hello, AbhiKap here

I am working on some work and I need some help on one problem:

Find the first term and common difference for the sequence with the given nth term.
a(n) = 8.6 + 0.4n

In the a(n), the n is the subscript.

Please help, I know it has something to do with the formula. But I don't know how to do it.

Thanks, Help is appreciated.

 

[stapel]

Find the first term and common difference for the sequence with the given nth term.
a(n) = 8.6 + 0.4n

In the a(n), the n is the subscript.

Please help, I know it has something to do with the formula. But I don't know how to do it.

Review the definitions of the variables in the formula. What does "n" stand for? :wink:

 

[HallsofIvy]

As stapel says, it doesn't have to do so much with the 'formula' as it does with the definitions. What does "first term" mean? What does "common difference" mean?

 

[guitarguy]

Hi,

When I look at this problem I assume that n denotes the number of the term. Although since this is not defined in the problem, the problem is vague.

Solve for a subscript 1 = 8.6 +0.4(1).

Another words what would a subscript 1 the first term equal.

Keep plugging, you are doing well.