Question 175770
{{{y <= 100}}}
{{{2x + 2y <= 500}}}
{{{2y <= -2x + 500}}}
{{{y <= -x + 250}}}
The line you draw on the graph is
{{{y = -x + 250}}}
This is in the form
{{{y = mx + b}}} where {{{m}}} is the slope, so
{{{m = -1}}}
A slope of {{{-1}}} is perpendicular to a slope of {{{1}}}
{{{ graph( 500, 500, -50, 300, -50, 300 ,0*x + 100,-x + 250) }}}