# precalc

posted by
**Haley** on
.

What are parametric equations?

How would you find the rectangular eq's when given parametric eq's? and how would you find parametric eq's when given rectangular eq's?

for example,

given x=cos4t and y=sin4t (t is between 0 and 2pi) what is the retangular equation?

given y=2x^(2)+4 whatare the parametric equations?