Collinearity of Three Points

Rarely Tested

Collinearity of Three Points

## Formula

Three points $$(x_1,y_1)$$, $$(x_2,y_2)$$ and $$(x_3,y_3)$$ are collinear if:

$$x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)=0$$

## Usage

- Used to test whether three given points lie on the same straight line.

No related questions available for this formula yet.

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