You can
put this solution on YOUR website!If a line has slope =

, then
any line perpendicular to it will have
slope =

Perpendicular line J,

So far I know line J has the form

. I know it goes through (1,1),
so I can just plug these values for

and

back into the equation for J

The equation for J is

I'll plot the 2 lines to check my work