Hi Sandeep,
The question you have asked is Example 24 of Straight Lines, please check http://teachoo.com/2677/627/Example-24---A-line-is-such-segment-between-5x---y---4-=-0/category/Examples/
To learn Chapter 10 Straight Lines, please visit
http://teachoo.com/subjects/cbse-maths/class-11th/ch10-11th-straight-lines/
To learn CBSE Maths for Class 9 to 12 with solutions of all NCERT questions, please visit http://teachoo.com/maths/
Written on Jan. 24, 2017, 12:04 p.m.