Write a Nonrecursive Formula for the Nth Term of the Arithmetic

question 64

Multiple Choice

Write a nonrecursive formula for the nth term of the arithmetic sequence {an} based on the given
information.
- $$a _ { 1 } = \frac { 1 } { 2 } , d = \frac { 2 } { 3 }$$

• A) \(a _ { n } = \frac { 2 } { 3 } n + \frac { 1 } { 6 }\)
• B) \(a _ { n } = - \frac { 1 } { 6 } n + \frac { 2 } { 3 }\)
• C) \(a _ { n } = - \frac { 1 } { 6 } n - \frac { 2 } { 3 }\)
• D) \(a _ { n } = \frac { 2 } { 3 } n - \frac { 1 } { 6 }\)

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Definitions:

Polyphenic Traits

Traits that exhibit several phenotypic expressions depending on environmental or genetic factors.

Phenotypic Plasticity

The skill of an organism to adjust its phenotype in accordance with changes in its surroundings.

Genetic Polymorphism

The existence of two or more distinct alleles at a given locus in a population’s genome.

Spans of Control

The number of subordinates or tasks that one manager or leader can effectively oversee or manage.