Find a Formula for A_n for the Arithmetic Sequence $\frac { 14 } { 3 }$

question 133

Multiple Choice

Find a formula for a_n for the arithmetic sequence.
A₁ = 8, a₄ = 18

• A)a_n = \(\frac { 14 } { 3 }\) + 14n
• B)a_n = \(\frac { 14 } { 3 }\) - 14n
• C)a_n = \(\frac { 10 } { 3 }\) n - \(\frac { 14 } { 3 }\)
• D)a_n = \(\frac { 10 } { 3 }\) n + 14
• E)a_n = \(\frac { 10 } { 3 }\) n + \(\frac { 14 } { 3 }\)

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