బిందువులు A(4,2),B(7,5), మరియు C(9,7) ఒకే సరళరేఖ పై ఉన్నాయని చూపండి
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Step-by-step explanation: given (4,2), (7,5) ,(9,7)
Slope of (4,2) & (7,5) = 5-2/7-4
=3/3=1
Equation of line y-2=1(x-4)
y-2= x-4
x-y-2=0
By substituting in (9,7)
Equation =0 ; hence the points are collinear
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