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

Question

–3.2, 4.8, –7.2, 10.8, …

a.The terms have a common difference of 8.
b.The terms have a common difference of 1.6.
c.The terms have a common ratio of –1.5.
d.The terms have a common ratio of –0.67.

Answer 1

b. The terms have a common difference of 1.6.