You can
put this solution on YOUR website!The equation is in the "standard form"
You need to get it in the "slope-intercept" form
which is:

In this form,

is the slope

Subtract

from both sides

Divide both sides by

Now it is in the slope-intercept form
where

The rule is, that any line perpendicular to this line will have
slope =

The slope of any line perpendicular to

is