Hi. For these two sets of parametric equations, I need to describe the type of curve, starting point of particle, direction of motion, and behavior of particle.
x=(sint)^2
y=(cost)^2
0 less than or equal to t less than or equal to 2
(This isn't a circle, right? because x^2+y^2 does not equal 1)??
x=(1-t^2)+(1+t^2)
y=2t/(1+t^2)