Question

Verify whether P (-2, 3), Q(1, 2) and R ( 4, 1) are collinear.
Solution :
Find d( P, Q ), d(Q, R ) and d(P, R)
Check whether the largest distance is equal to the sum of the other two distances ,
and write your observation.
∴ The points P, Q and R are _______________.


Please give detailed answers. Thank you!

Answer 1

Answer:

tane the distance formula of PQ,QR,and PR if all of them are equal the points are equal

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