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Math·Advanced Math·Nonlinear functions

hard

On January $1$, there were $233$ views of a video posted on a social media site. Every $2$ days after January $1$, the number of views of the video had increased by $60\%$ of the number of views $2$ days earlier. The function $f$ gives the predicted number of views $x$ days after January $1$. Which equation defines $f$?

A

$f(x)=233(0.60{)}^{\frac{x}{2}}$

B

$f(x)=233(0.60{)}^{2x}$

C

$f(x)=233(1.60{)}^{\frac{x}{2}}$

D

$f(x)=233(1.60{)}^{2x}$