CBSE Class 11-commerce Maths Straight Lines
Basic Concepts of 2D GeometryDistance between two points in the Cartesian plane. Section formula for internal /external division. Area of a triangle when given its vertices.
Slope of a LineSlope of a line and Condition for parallelism and perpendicularity of lines. Angle between two lines.
Various Forms of Equation of A LineHorizontal and vertical lines. Various forms of equation of straight lines: slope intercept form, two point form; intercept form, point slope form.
Normal and General Form of A LineAlgebraic equation of a line in normal form. General equation of a line converting general form to normal form, intercept form, point slope form etc.
Distance Between LinesDistance of a point from a line, Distance between two parallel lines
Shifting of OriginShifting of origin