Find the Common Ratio for the Geometric Sequence

question 69

Multiple Choice

Find the common ratio for the geometric sequence.
-1, 3, 9, 27, 81, . . .

• A) 3
• B) 2
• C) 1
• D) not geometric 3

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Definitions:

Ionic Compound

A chemical compound composed of ions held together by electrostatic forces termed ionic bonding, typically formed between metal and non-metal ions.

Ionic Charges

The electrical charge that an atom acquires when it gains or loses electrons in the formation of an ionic compound.

Cation

A cation is a positively charged ion that results from the loss of one or more electrons by an atom.

Anion

A negatively charged ion, attracted to the anode during electrolysis, typically formed by the gain of electrons.