- Cartesian Coordinate System & Cartesian Plane
- Graphs of Algebraic Functions
- Derivation of Distance formula
- Use of Distance formula
- Problem 1: Use of Distance formula
- Points Dividing the Join of Two Points in Given Ratio
- More on Points Dividing Join of Two Points in Given Ratio
- Problem1a-Points Dividing the Join of Two Points in Given Ratio
- Problem1b-Points Dividing the Join of Two Points in Given Ratio
- Condition that Altitudes of Triangle are Concurrent
- Moreo on Condition that Altitudes of Triangle are Concurrent
- Problem1-Condition that Altitudes of Triangle are Concurrent
- Condition that Right Bisectors of Triangle are Concurrent
- More on Condition that Right Bisectors of Triangle Concurrent
- Problem1-Condition that Right Bisectors of Triangle are Concurrent

- Inclination of Line
- Slope or Gradient of a Line
- Gradient of a Straight Line Joining Two Points
- Slope of Parallel Lines
- Problem-Slope of Parallel Lines
- Problem2-Slope of Parallel Lines
- Perpendicular- Parallel lines

- Equations of a Straight Line
- More on Equations of Straight Line
- Problem-Equations of a Straight Line

- Derivation of Slope Intercept form
- Problem1-Derivation of Slope Intercept form
- Deriving Point-slope Form of Equation of Straight Line
- Problem1-Deriving Point-slope Form of Equation of Straight Line
- Two Point form of Equation of Straight Line
- Problem1-Two Point form of Equation of Straight Line
- Intercept Form of Equation of Straight Line
- Problem1-Intercept Form of Equation of Straight Line
- Symmetric Form of Equation of Straight Line
- Problem1-Symmetric Form of Equation of Straight Line
- Normal Form of Equation of Straight Line
- Problem1-Normal Form of Equation of Straight Line
- How 2 Variabled Linear Equation Represent Straight Line
- Problem1-How 2 Variabled Linear Equation Represent Straight Line
- Transforming General Linear Equation to Standard Forms
- Problem1-Transforming General Linear Equation to Standard Forms
- Transforming General Equation to Slope Intercept Form
- Problem1-Transforming General Equation to Slope Intercept Form
- Transforming General Form of Equation to Intercept Form
- Problem1-Transforming General Form of Equation to Intercept Form
- Transforming General Form of Equation to Normal Form
- Problem1-Transforming General Form of Equation to Normal Form
- Transforming General Form of Equation to Point Slope Form
- Problem1-Transforming General Form of Equation to Point Slope Form
- Transforming General Form of Equation to Symmetric Form
- Problem1-Transforming General Form of Equation to Symmetric Form