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JEE MATHEMATICS MCQ: 2D GEOMETRY SYSTEM

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If the points (−2,−5),(2,−2),(8,a)(-2,-5),(2,-2),(8, a) are collinear, then the value of aa is
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Correct option: B
52\frac{5}{2}
Option B (52\frac{5}{2}) is correct because the slope between any two pairs of collinear points must be equal.

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