Middle School

Which formula can be used to describe the sequence?

-2 2/3, -5 1/3, -10 2/3, -21 1/3, -42 2/3

A. [tex]f(x + 1) = -2f(x)[/tex]

B. [tex]f(x + 1) = -\frac{1}{2}f(x)[/tex]

C. [tex]f(x + 1) = \frac{1}{2}f(x)[/tex]

D. [tex]f(x + 1) = 2f(x)[/tex]