\(\hbox{Line 1:}\\
m=\frac{5-4}{-3-0}\\
m=\frac{1}{-3}\\
m=-\frac{1}{3}\\\\
\hbox{Line 2:}\\
m=\frac{4-2}{0-6}\\
m=\frac{2}{-6}\\
m=-\frac{1}{3}\\\)
Both lines have the same slope so they're parallel. They also pass through the same point \((0,4)\). That means they're overlapping, so there is infinitely many solutions.
