Mathematics 0580 · IGCSE · Perpendicular lines

Perpendicular lines — practice question

$C$ lies at $(5, -1)$, while $D$ lies at $(13, 15)$.

(a)[2]

Find the midpoint between $C$ and $D$.

(b)[2]

Find the gradient along $CD$.

(c)[3]

Find the equation of the perpendicular bisector of $CD$, and write your answer in the form $y = mx + c$.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The midpoint is $(9,7)$.” …