Algebra 1 Honors

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?

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  1. Does your formula work with what was given?

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  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

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