determine whether the points are collinear. A (1, -3 ) B (2,-5) C (-4,7) plz slove it by distance formula
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Hey there!
The more accurate way to answer is:
Given points,
A ( 1 , - 3)
B ( 2, -5)
C ( -4, 7)
Slope of AB:
(y₂ - y₁) / (x₂ - x₁)
= (-5 + 3) / (2 - 1)
= -2
Slope of BC:
(y₂ - y₁) / (x₂ - x₁)
= (7 + 5) / (-4 - 2)
= 12 / -6
= -2
Since, Slope of AB = Slope of BC
Hence, the lines are collinear.
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