SOLUTION: If AB <--> (it has the arrow part over AB) contains the points (19,3) and (-5,-13), what is the slope of the line perpendicular to AB <--> (again arrow part I drew over AB)? Answer

Question 325734: If AB <--> (it has the arrow part over AB) contains the points (19,3) and (-5,-13), what is the slope of the line perpendicular to AB <--> (again arrow part I drew over AB)? Answer has to be written as a decimal.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
perpendicular lines (or in this case, vectors) have slopes that are negative-reciprocals of each other

the original slope is ___ (-13 - 3)/(-5 - 19) ___ or ___ -16 / -24 ___ or ___ 2/3

so the slope of the perpendicular is ___ -3/2
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