\begin{equation}y=9x+8\textrm{ },\textrm{ }y=9x+10\end{equation}

\begin{equation}x+10y=4\textrm{ },\textrm{ }x+10y=10\end{equation}

\begin{equation}x+10y=1\textrm{ },\textrm{ }x+10y=8\end{equation}

\begin{equation}y=6x+2\textrm{ },\textrm{ }y=\frac{-1}{6} \times x+2\end{equation}

\begin{equation}9x-y=2\textrm{ },\textrm{ }x+9y=9\end{equation}

\begin{equation}6x+10y=5\textrm{ },\textrm{ }10x-6y=6\end{equation}

\begin{equation}2x+5y=9\textrm{ },\textrm{ }2x+2y=10\end{equation}

\begin{equation}\textrm{line passing through the points }( 6, 6 )\textrm{ and }( -2, -1 )\end{equation}\begin{equation}\textrm{line passing through the points }( 18, 18 )\textrm{ and }( -6, -3 )\end{equation}

\begin{equation}\textrm{line passing through the points }( 10, 8 )\textrm{ and }( 8, 9 )\end{equation}\begin{equation}\textrm{line passing through the points }( 8, 8 )\textrm{ and }( 9, 10 )\end{equation}

\begin{equation}\textrm{line passing through the points }( 10, 2 )\textrm{ and }( 6, 4 )\end{equation}\begin{equation}\textrm{line passing through the points }( 6, 6 )\textrm{ and }( 6, 8 )\end{equation}