Question

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

2.4, –4.8, 9.6, –19.2

a. The common difference is –7.2.
b. The common difference is –2.4
c. The common ratio is –2.0.
d. The common ratio is –0.5.

Answer 1

Have you considered subtracting successive values to SEE a common difference if there is one?

Have you considered dividing successive values to SEE a common ratio if there is one?

Answer 2

B. The common difference is -7.2