Coordinate geometry and circles in N(A)-Level Additional Mathematics (4051): gradients, lengths, midpoints and equations of straight lines, the conditions for parallel and perpendicular lines, and the equation of a circle

An N(A)-Level Additional Mathematics (4051) overview of coordinate geometry and circles in the Geometry and Trigonometry strand. How to find the gradient, length, midpoint and equation of a line, the gradient conditions for parallel and perpendicular lines, and the equation of a circle with its centre and radius, with links to every dot point.