| Exam Board | CAIE |
| Module | P1 (Pure Mathematics 1) |
| Year | 2016 |
| Session | June |
| Topic | Straight Lines & Coordinate Geometry |
8 A curve has equation \(y = 3 x - \frac { 4 } { x }\) and passes through the points \(A ( 1 , - 1 )\) and \(B ( 4,11 )\). At each of the points \(C\) and \(D\) on the curve, the tangent is parallel to \(A B\). Find the equation of the perpendicular bisector of \(C D\).