# Write a Parametric equation

1. Jun 9, 2009

### metking92

Write a pair of parametric equations for the figure whose rectangular equation is
((y-2)^2)/49)-((x-1)^2)/9)=1

2. Jun 9, 2009

### Cyosis

Compare it to the equation $x^2+y^2=1$ which is almost the same. Does this equation look familiar? Do you what kind of geometric figure it represents? Can you find a parametrization for this simplified problem?

3. Jun 9, 2009

### metking92

Hi i am sorry but i still dont understand this. Is there anyway you can make it simpler.

4. Jun 9, 2009

### rock.freak667

Here is a clue

if sin2x+cos22=1

and you divide throughout by cos2x, what do you get?