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Class XI Mathematics

Chapter 9: Straight Lines

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Example 1

Distance of Point from Line

Find distance of point (2, 3) from line 3x + 4y - 8 = 0.
sin θcos θθ

Calculation Steps:

  1. 1Identify parameters: x0 = 2, y0 = 3, A = 3, B = 4, C = -8.
  2. 2Apply distance formula: d = |3(2) + 4(3) - 8| / √(3² + 4²).
  3. 3Calculation: |6 + 12 - 8| / √(9 + 16) = |10| / √25 = 10 / 5 = 2.
Solution2