Question

Which function can be used to represent the graphed geometric sequence

Answer 1

ANSWER IS A                                                                                                                                                              

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Answer 2

ANSWER

$f(x)=80( \frac{1}{4}) ^{x-1}$


EXPLANATION

The term of the sequence are;

$80,20,5,...$


The first term of the sequence is,

$a_1=80$



The common ratio is

$r = \frac{20}{80}$

$r = \frac{1}{4}$

The sequence is given by the formula


$f(x)=a_1r^{x-1}$


When we substitute the values into the formula we get,

$f(x)=80( \frac{1}{4}) ^{x-1}$


The correct answer is A