The line l is horizontal and parallel to the x-axis. Because the vertical change (rise) between any two points is zero, the slope equals 0 / run = 0.
Class 9 Maths Ganita Manjari New Book Part 2 Solutions
Class 9 Maths Ganita Manjari Part 2 Chapter 13 Question Answer
The given line l is a horizontal straight line parallel to the x-axis. For any two distinct points chosen on this line, the vertical coordinate remains constant, meaning the vertical rise (y₂ – y₁) is zero while the horizontal run (x₂ – x₁) is non-zero. Therefore, the slope is calculated as 0 divided by run, which gives a slope of 0.
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