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Two-Point Form

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The two-point form of a line in the Cartesian plane passing through the points (x_1,y_1) and (x_2,y_2) is given by

y-y_1=(y_2-y_1)/(x_2-x_1)(x-x_1),

or equivalently,

y-y_2=(y_2-y_1)/(x_2-x_1)(x-x_2).

See also

Intercept Form, Line, Point-Slope Form, Slope-Intercept Form

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Cite this as:

Weisstein, Eric W. "Two-Point Form." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Two-PointForm.html

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