SOLUTION: Determine whether the sequence is arithmetic, geometric, or neither. 1,-3,9,-27,81... A. Geometric; r=-3 B. Arithmetic; d=-3 C. Geometric; r=3 D. Neither

Algebra ->  Sequences-and-series -> SOLUTION: Determine whether the sequence is arithmetic, geometric, or neither. 1,-3,9,-27,81... A. Geometric; r=-3 B. Arithmetic; d=-3 C. Geometric; r=3 D. Neither      Log On


   

Question 1060245: Determine whether the sequence is arithmetic, geometric, or neither.
1,-3,9,-27,81...
A. Geometric; r=-3
B. Arithmetic; d=-3
C. Geometric; r=3
D. Neither
Answer by Mini-(17) About Me  (Show Source):
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A. Geometric; r=-3