Determine whether the following points are collinear: R(1, -4), S(-2, 2), T(-3, 4).

Doubtly Asked 24 Oct 2026 Save WhatsApp Report

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Answer: The points are collinear.

Slope \(=\dfrac{y_2-y_1}{x_2-x_1}\).

Slope of RS = \(\dfrac{2+4}{-2-1}=-2\)

Slope of ST = \(\dfrac{4-2}{-3+2}=-2\)

The slopes are equal and the two segments share a point, so the points lie on one line.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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