Straight Lines – Notes
Slope of a Line
The angle made by a straight line in the anti-clockwise direction with the x-axis is called inclination.
Slope of a line (m) = tan q
Where q = inclination of the line
If q = 00
Slope (m) = 0
If q = 900
Slope (m) is not defined.
The slope of a line passing through points (x1, y1) and (x2, y2) is
Class 11th Maths 10 - Straight Lines - Notes