Given that the line contains is perpendicular to
;
Find the slope of .
Let be
and
be
.
(Slope formula)
(Substitute
)
(Simplify)
The product of slopes of two perpendicular lines is .
Since .
So, the line perpendicular to have the slope 2.
Graph the line.
\Start at , move up 2 units and then right 1 unit.
Label the point B. Draw .
The graph is
\