Question

Find the value of a line perpendicular to the given line 9x-3y = 5

Answer 1

When the lines are perpendicular to the product of their slopes is -1

i.e m₁ x m₂ = -1

9x - 3y = 5

3y = 9x -5

y = 3x - `5/3`

m₁ = 3

Required slope = `(-1)/"m"_1 = (-1)/3`