Question

Prove that the equation of a line passing through the points (x₁, y₁) and (x₂, y₂) is y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

Answer 1

Let the line L passes through the given point A(x₁, y₁)and B(x₂, y₂)

This is called two - point form of a line.