Class 11 NCERT • Mathematics (New Syllabus)
Mathematics Ch 09: Straight Lines
Select a topic or study module below to explore slope of a line, various forms of equation of a line, distance of a point from a line, angle between two lines, family of lines, and comprehensive textbook solutions.
Topic 01 • Slope of a Line
Exploring Angle of Inclination, Slope Formula between Two Points, Parallel and Perpendicular Lines
Topic 02 • Equations of Lines
Analyzing Point-Slope Form, Two-Point Form, Slope-Intercept Form, and Intercept Form
Topic 03 • Normal & General Forms
Studying Normal Form Equations, General Linear Equation Ax plus By plus C equals Zero, and Transformations
Topic 04 • Point-Line Distance
Investigating Perpendicular Distance Formula from a Point to a Line and Distance Between Parallel Lines
Topic 05 • Angle Between Lines
Examining Formula for Acute Angle Between Two Intersecting Lines Given Their Slopes
Topic 06 • Line Intersections
Analyzing Point of Intersection of Two Lines and Conditions for Concurrency of Three Lines
Topic 07 • Family of Lines
Studying Equations of Family of Lines Passing Through Intersection Point and Geometric Loci Problems
Module 08 • Solutions & Quiz