- Core 1 Coordinate Geometry
- Slopes: Parallel and Perpendicular Lines
- Tangent Line to Function
- The Equation of a Circle
- equation of circle with movable center & any point on circle
- Role of a, b and r in the equation (x-a)^2+(y-b)^2=r^2
- Tangents to a Quadratic through a Given Point
- equation of a line when any one point and slope are given
- Normals to a Quadratic through a Given Point
- Property of a tangent
- Visualising Differentiation
