[tex]\bf (\stackrel{x_1}{6}~,~\stackrel{y_1}{-4})~\hspace{10em} slope = m\implies 0 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-4)=0(x-6)\implies y+4=0\implies y=-4[/tex]
