Find $a _ { 1 }$ And and R for a Geometric Sequence

question 56

Multiple Choice

Find $a _ { 1 }$ and and r for a geometric sequence { $\left\{ a _ { n } \right\}$ } from the given information.
- $a _ { 2 } = - 6$ and $a _ { 6 } = - \frac { 243 } { 128 }$

• A) \(a _ { 1 } = 8\) and \(r = \frac { 3 } { 4 }\)
• B) \(a _ { 1 } = - \frac { 32 } { 3 }\) and \(r = - \frac { 3 } { 4 }\)
• C) \(a _ { 1 } = 8\) and \(r = - \frac { 3 } { 4 }\)
• D) \(a _ { 1 } = 8\) and \(r = - \frac { 4 } { 3 }\)

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