Skip to page content
Straight Lines
Mathematics · Chapter 11 · Unit 3: Coordinate Geometry
Not started Not started
Your path through this chapter
Visual lesson Coming soon
Short slides, one idea at a time. We are preparing this chapter's lesson.
Notes Coming soon
Clear chapter notes for quick revision.
Flashcards Coming soon
Quick recall of key terms and facts.
Practice Coming soon
Board-style questions with instant checks.
Chapter test Free
Short and long chapter tests in board pattern, with results and analysis.
Step 5: Not started
Topics 5
- Recall of two-dimensional geometry: section formula (internal and external), incentre, area of a triangle, collinearity; shifting of origin
- Slope of a line; angle between two lines; conditions for parallel and perpendicular lines
- Forms of the equation of a line: parallel to an axis, point-slope, slope-intercept, two-point, intercept and normal forms; general equation
- Distance of a point from a line; distance between parallel lines; equations of angle bisectors
- Family of lines through the intersection of two lines; locus and its equation