\noindent\textbf{108.} The graph of $f(x) = -2 + \left(\dfrac{1}{2}\right)^{Ax+B}$ intersects the graph of $y = x^2 - x$ at two points with $x$-coordinates 1 and 2. What is $f(3)$?
\hfill (1) $3$ \hfill (2) $4$ \hfill (3) $5$ \hfill (4) $6$
\vspace{1em}
\noindent\rule{\textwidth}{0.4pt}
\hfill \textbf{Calculation Space}
%% Page 4