Introduction to Straight Lines

Geometry is underpinned by a number of interrelated sets of theory. Straight line theory is highly purtinent to the study of geometry and shapes.

1. Introduction
2. Slope or Gradient of a Line
3. Slope of a Line through Two Points
4. Equations of Lines in Standard Forms
5. Transformation of General Equation in Different Standard Forms
6. Point of Intersection of Two Lines
7. Condition of Concurrency of Three Given Lines
8. Angle Between Two Intersecting Lines
9. Distance of a Point from a Line