Question

Write an equation for the nth term of the arithmetic sequence. Then graph the first five terms in the Sequence.
-3,-8,-13,-18

I got 5n-8 as my formula.

Then plugged 5 in for n and got 17 for the 5th number in the sequence.

Is this correct?

Answer 1

Does your formula work with what was given?

Answer 2

The general formula of an arithmetic sequence is
An = A1 + (n-1)d
where An refers to the nth term,
A1 refers to the first term
d refers to the common difference

Try using the above formula