Set up the parametric equation for to solve the equation for .
Rewrite the equation as .
Take the natural logarithm of both sides of the equation to remove the variable from the exponent.
Expand the left side.
Expand by moving outside the logarithm.
The natural logarithm of is .
Multiply by .
Replace in the equation for to get the equation in terms of .
Simplify by moving inside the logarithm.
Eliminate the Parameter x=e^t , y=e^(-2t)