NCERT Exercise 9.3 Q15 - Straight Lines
Question: Prove that the intercepts p and q of a line through (a, b) perpendicular to ax + by = c satisfy p^2 + 4q^2 = k^2 for a suitable constant k.
Answer: p^2 + 4q^2 = k^2.
Full step-by-step NCERT solution with diagrams on Something by Zero.