Question

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

2.4, –4.8, 9.6, –19.2

Answer 1

The common ratio is –2.0.

Explanation:

Answer 2

2.4, -4.8, 9.6, -19.2,…
× -2 × -2 × -2


`a_(n) = a_(1)r^(n - 1)`

`a_(n) = 2.4(-2)^(n - 1)`

The relationship that is between the successive terms in the sequence shown is that it is multiplied by -2.