Find the formula for a_n for the arithmetic sequence 10,5,0,−5,−10,...

Kymani Hatfield

Kymani Hatfield

Answered question

2022-10-15

Find the formula for a n for the arithmetic sequence 10,5,0,−5,−10,...

Answer & Explanation

Jean Deleon

Jean Deleon

Beginner2022-10-16Added 14 answers

We know the first term and the common difference.
t n = a + ( n - 1 ) d
t n = 10 + ( n - 1 ) - 5
t n = 10 - 5 n + 5
t n = 15 - 5 n
Note that a n and t n are equivalent terms.

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