What is the mean for the data set?
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so the slope of the line m is a=-4/5
let a' be the slope of the line perpendicular to m ,
a.a'=-1 ( Perpendicular lines )
-4/5 x a'=-1
a'=
so the slope of the line m is a=-4/5
let a' be the slope of the line perpendicular to m ,
a.a'=-1 ( Perpendicular lines )
-4/5 x a'=-1
a'=
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