On a coordinate plane, 3 points are plotted. The points are (1, 80), (2, 20), (3, 5). Which function can be used to represent th
e graphed geometric sequence? f(x) = 80(One-fourth) Superscript x minus 1 f(x) = 320(One-fourth) Superscript x minus 1 f(x) = 80(4)x – 1 f(x) = 320(4)x – 1
1 answer:
Answer:
(A)
Step-by-step explanation:
Given the three points plotted on a coordinate plane
Let us consider the values in the y-axis i.e. f(x)
80, 20, 5
We notice that each succeeding term occurs by the division of the previous term by 4.
Precisely:
This is a geometric sequence where the:
First Term =80
Common ratio =
Therefore, the function which can be used to graph the geometric sequence is:
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