(a(i))[2]
Find the equation of the line passing through $A$ and perpendicular to $y = 2x - 7$.
(a(ii))[3]
Find the length of $AC$.
Mathematics 9709 · AS & A Level · Coordinate geometry
Find the equation of the line passing through $A$ and perpendicular to $y = 2x - 7$.
Find the length of $AC$.
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State the gradient of the perpendicular line as $-\frac{1}{2}$.” …