Which formula can be used to describe the sequence?

-3, 3/5, -3/25, 3/125, -3/625

a. f(x) = -3(1/5)^x-1
b. f(x) = -3(1/5)^x-1
c. f(x) = -1/5(3)^x-1
d. f(x) = -1/5(-3)^x-1

Each term is multiplied by -1/5
first term is -3

an=a1(r)^(n-1)
for a1=first term
r=common ratio
n=which term

in this case
first term=-3
common ratio is -1/5
so



none of them
oh, A and B are the same
the one that has the -1/5 inside is the one

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

Maybe fx = lxl because of the way the x is positioned is that what he