At the intersection with the vertical line x = 3, substitute x = 3 into y = 3x to obtain y = 3(3) = 9. Therefore, the point of intersection is (3, 9).
Cbse released Class 9 Ganita Manjari Part 2 book
Chapter 13 Two Variables, One Line (Ganita Manjari 2) Solutions
The intersection of the two lines must satisfy both equations simultaneously. The second line fixes the x-coordinate at x = 3. Substituting x = 3 into the given equation y = 3x determines the corresponding vertical value: y = 3(3) = 9. Therefore, the two lines intersect at the point (3, 9), which is plotted directly above 3 on the x-axis at height 9.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/