| Exam Board | OCR MEI |
|---|
| Module | C4 (Core Mathematics 4) |
|---|
| Year | 2011 |
|---|
| Session | January |
|---|
| Topic | Parametric equations |
|---|
2 A curve is defined parametrically by the equations
$$x = \frac { 1 } { 1 + t } , \quad y = \frac { 1 - t } { 1 + 2 t }$$
Find \(t\) in terms of \(x\). Hence find the cartesian equation of the curve, giving your answer as simply as possible.