Question

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

–3.2, 4.8, –7.2, 10.8, …

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

Answer 1

the terms have a common ratio of - 1.5

Explanation:

Consider the ratio between consecutive terms

4.8 ÷ - 3.2 = - 7.2 ÷ 4.8 = 10.8 ÷ - 7.2 = - 1.5

Answer 2

c)-1.5

Explanation:

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