Find the General Term of the Arithmetic Sequence Then Find $a _ { n }$

question 129

Multiple Choice

Find the general term of the arithmetic sequence then find the indicated term of the sequence. Assume that the domain of the sequence is all natural numbers.
-Find $a _ { n }$ and $a _ { 8 }$ .

• A) \(a _ { n } = n + 1 ; a _ { 8 } = 9\)
• B) \(a _ { n } = n - 2 ; a _ { 8} = 6\)
• C) \(a _ { n } = n + 2 ; a _ { 8 } = 10\)
• D) \(a _ { n } = n - 1 ; a _ { 8 } = 7\)

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Definitions:

Tips

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Valid Argument

An argument such that its premises logically imply or entail its conclusion which makes it impossible for all of its premises to be true and its conclusion to be false.

Denying the Consequent

A valid form of argument in which, from the premises that if P then Q, and not Q, one concludes not P.

Denying the Consequent

A form of logical argument where, if the premise states that if P then Q, and Q is found to be false, then P is also concluded to be false.