Concept explainers
a
To show:ThePoints are collinear using the distance formula.
a
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Explanation of Solution
Given information:Here, we have given that points are
Formula used: Distance formula: d =
Proof:Let the points be A
Points are collinear when
Now,
And,
As,
b
To show: Points are collinear using slope.
b
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Explanation of Solution
Given information:
Here, we have given that points are
Formula used: Slope of a line =
Proof:Let the points be A
Points are collinear when, slope of AB = slope of BC.
Slope of AB =
Now, Slope of BC =
Now, as Slope pf AB = Slope pf BC
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