Question

Show that the point (1, 5), (2,4)and (3,3)are colliner.

Answer 1

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Answer 2

let A=(1,5) 
  B =(2,4)
and C=(3,3) 
now AB =√(2-1)²+(4-5)² =√2
 BC = √(3-2)²+(3-4)² =√2
   AC =√(3-1)² +(3-5)² =√8 = 2√2
AB +BC= AC 
 Hence given points are collinear