Question

show that the points A(-1 ,1) ,B(5,7) and C (8,10) are collinear.

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Answer 1

Step-by-step explanation:

first take out distance between A and B by formula.

then take out distance between B and C by formula.

if AB+BC = AC then points are collinear. if AB+BC is not equal to AC then by joining all the points it will form a ∆ .

Answer 2

Answer:

Show that the points A(-1, 1), B(5, 7) and C(8, 10) are collinear. =(3+45-48)=0. Hence, the given points are collinear.