- Coordinate Geometry
Learn formulas for distance between two points, internal and external division, midpoint, centroid, incenter, area of a triangle and collinearity in one place.
- Slope or Gradient of a Straight Line
Learn m = tanθ, slope from two points, slopes of lines parallel to the coordinate axes, conditions for parallel and perpendicular lines, and the angle between two straight lines.
- Equations of a Straight Line
Learn y = mx + c, Point-Slope, Two-Point, Intercept, Normal and Symmetric forms, plus equations of parallel, perpendicular and intersection-point straight lines with examples.
- Equations of a Circle
Learn the standard and general equations of a circle, centre and radius, parametric form, completing the square, and the equation of a circle from the endpoints of a diameter.
