Question

Line segment ST has endpoints (3,2) and (7,4). What is the equation for the perpendicular bisecotr?

Answer 1

We need Vector ST which is just T - S

(7-3.4-2) = (4,2)

So now we need the perpindicular. The easiest way to do this, is to know that , in R2 that the perindicular is just the negatice inverse.  So its (2,-4)