Answer
The graph labeled as d matches the sequence.
Work Step by Step
$a_n=4(0.5)^{n-1}$
$a_1=4(0.5)^{1-1}=4(0.5)^{0}=4$
$a_2=4(0.5)^{1-2}=4(0.5)^{-1}=2$
$a_3=4(0.5)^{1-3}=4(0.5)^{-2}=1$
$a_4=4(0.5)^{1-4}=4(0.5)^{-3}=0.5$
...
$a_{10}=4(0.5)^{1-10}=4(0.5)^{-9}=0.0078125$
The graph labeled as d matches the sequence.
