Given Are the First Three Terms of a Sequence That $\frac { 2 } { 3 } , \frac { 8 } { 3 } , \frac { 32 } { 3 }$

Multiple Choice

Given are the first three terms of a sequence that is geometric. Find a1 and r.
- $\frac { 2 } { 3 } , \frac { 8 } { 3 } , \frac { 32 } { 3 }$

A) $a _ { 1 } = \frac { 2 } { 3 } ; r = 4$
B) $\mathrm { a } _ { 1 } = \frac { 2 } { 3 } ; \mathrm { r } = 5$
C) $a _ { 1 } = \frac { 2 } { 3 } ; r = 1$
D) $a _ { 1 } = \frac { 2 } { 3 } ; r = 6$