The product of perpendicular line's slope (P) and the original line (I'm going to call it M) will always equal to minus one
=> -1= M(P)
With the equation
3y=-4x+2
->The slope is -4/3
M= -4/3
-1=M(P)
P= -1/M
= [tex] \frac{-1}{ \frac{-3}{4} } [/tex]
= 4/3
The perpendicular slope is 3/4
For future reference (maybe?)
----> the perpendicular slope is the negative reciprocal of the original line's slope
