Question

Which function can be used to represent the graphed geometric sequence?

f(x) = 80
f(x) = 320
f(x) = 80(4)x – 1
f(x) = 320(4)x – 1

http://media.education2020.com/evresources/3109/3109-07/3109-07-07/3109-07-07-assessment/3109-07-07-18.png

Answer 1

well. is clearly an exponential function, and it's dropping, or decreasing....so hmm

that rules out a) and b) choices, which are static

so test the remaining ones :)