Write the Expression for the General (Or Nth)term, An, of the Arithmetic

question 112

Multiple Choice

Write the expression for the general (or nth) term, an, of the arithmetic sequence. Then, find the indicated term of the
arithmetic sequence.
- $a = 5 , d = - 5 ; \quad \text { find } a _ { n } \text { and } a _ { 15 }$

• A) \(a _ { n } = 10 + 5 n , a _ { 15 } = - 65\)
• B) \(a _ { n } = 10 - 5 n , a _ { 15 } = - 65\)
• C) \(a _ { n } = 10 - 5 n , a _ { 15 } = - 25\)
• D) \(a _ { n } = 5 - 5 n , a _ { 15 } = - 65\)

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