The line graphed in the $xy$-plane below models the total cost, in dollars, for a cab ride, $y$, in a certain city during nonpeak hours based on the number of miles traveled, $x$.<br/><br/>\begin{tabular}{l} $x$ \\ \end{tabular}<br/><br/>According to the graph, what is the cost for each additional mile traveled, in dollars, of a cab ride?

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The line graphed in the $xy$-plane below models the total cost, in dollars, for a cab ride, $y$, in a certain city during nonpeak hours based on the number of miles traveled, $x$.<br/><br/>\begin{tabular}{l} $x$ \\ \end{tabular}<br/><br/>According to the graph, what is the cost for each additional mile traveled, in dollars, of a cab ride?