1. General Equation of Straight line.
2. Equation of Axes.
3. Slope – Intercept Form.
4. Intercept Form.
5. Point – Slope Form.
6. Two Point Form.
7. Normal Form.
8. Slope of Straight line.
9. Angle b/w given two lines. 
10. Parallel Line.
11. Perpendicular Line.
12. Line through a Point.
13. Family of Lines.
14. Concurrency.
15. Length of Perpendicular.
16. Distance between parallel lines.
17. Bisector.
18. Image or Reflection of a Point (x ,y) about a line mirror.
19. Image or Reflection of a Point in different Case.
20. Area of Parallelogram.
Note :
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