(a) The parametric equations are and
and interval is
.
The curve equation in cartesian form is .
(b)
Consider .
,
Hence the -values in the interval
.
The direction of the curve will move toward the point , but it will not reach the point.
Graph:
\Graph the parametric equations and
:
(a) Equation of the curve is .
(b)
\Graph of the parametric equations and
: