We have to find the slope of the given line. We can solve its equation for y to get

So, the slope of the given line is 2/3.
If m and m' are the slopes of two perpendicular lines, we have

This means that the perpendicular slope is -3/2.
Now we use the point-slope formula

where
is the given point and m is the given slope, to find the equation of the required line:
