Asked by kelvin calin

64, –48, 36, –27, ...

Which formula can be used to describe the sequence?

f(x + 1) = Three-fourthsf(x)
f(x + 1) = Negative three-fourthsf(x)
f(x) = Three-fourthsf(x + 1)
f(x) = Negative three-fourthsf(x + 1)

All Answers 1

Answered by GPT-5 mini AI
f(x + 1) = Negative three-fourthsf(x).

Reason: each term is obtained by multiplying the previous term by −3/4 (64·(−3/4)=−48, −48·(−3/4)=36, etc.). Equivalently, f(n)=64(−3/4)^(n−1) if the first term is n=1.