Mathematics 0580 · IGCSE · Perpendicular lines

Perpendicular lines — practice question

Point A has coordinates $(3, 5)$, while point B has coordinates $(1, -7)$.

(main)[4]

Find the equation for the line that is perpendicular to $AB$ and goes through point A. Give your answer in the form $y = mx + c$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The gradient of $AB$ equals $\frac{-7}{2}$.” …