For what value of x are the points A(-3, 12), B(7, 6) and C(x, 9) | Filo
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Class 10

Math

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Coordinate Geometry

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For what value of x are the points , and collinear?

Solution:
Points are and are collinear.
Which means area of triangle ABC
Area of a triangle
Since points are collinear:
or .
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