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Distance, midpoint, slope, and line equations for any two points. Enter coordinates — see distance, midpoint, equation of line, and gradient. Free.

Find the equation of a line from two points or slope and a point. Enter coordinates — see slope-intercept, standard, and point-slope forms. Free.

Slope of a line perpendicular to any given line. See formula, step-by-step solution and all rearrangements. Instant math solver.

Standard and general form of a circle equation. Formula, variable legend, diagram and worked example included. Instant geometry result.

Area perimeter and eccentricity of an ellipse. Formula, variable legend, diagram and worked example included. Instant geometry result.