Using the graph below, what are the common ratio and the general term equation, an, of the geometric sequence?

Mathematics

1 answer:

Len [333]4 years ago

3 0

Given that the geometric series is given by:
an=a1(r)^(n-1)
where:
a1= first term
r=common ratio
n=number of terms:
from the graph, our sequence is:
-32,-24,-18,...
where:
a1=-32
a2=-24
a3=-18
thus
common ratio, r=-24/-32=3/4

thus the general form will be:
an=-32(3/4)^(n-1)

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