Which best describes the relationship between the successive terms in the sequence shown?

2.4, –4.8, 9.6, –19.2

The common difference is –7.2.
The common difference is –2.4.
The common ratio is –2.0.
The common ratio is –0.5.

Question

Which best describes the relationship between the successive terms in the sequence shown?

2.4, –4.8, 9.6, –19.2

The common difference is –7.2. 
The common difference is –2.4.
The common ratio is –2.0.
The common ratio is –0.5.

Vocaloid · Answer

Each term in the series is the previous term multiplied by some common ratio

To find this ratio divide any term by the term before it

For example (2nd term)/(1st term) = ?