(a)
\The parametric equations are
and
.
Find the rectangular equation.
\Consider
.

Substitute
in
.

The rectangular equation is
.
Graph:
\Graph the parametric equations
and
.

Observe the graph :
\The domain of the graph is
.
The orientation is towards up and curve is smooth and continuous.
\The range is
.
(b)
\The parametric equations are
and
.
Graph:
\Graph the parametric equations
and
.

Observe the graph :
\The domain of the graph is
.
The orientation is towards down and curve is smooth and continuous.
\The range is
.
Observe the set of graphs of parametric equations:
\The parametric equations from (a)-(b) are similar and their rectangular equation is
.
The curves are identical but orientation is opposite to each other.
\The parametric equations from (a)-(b) are similar and their rectangular equation is
.
The curves are identical but orientation is opposite to each other.
\(a)
\The domain of the graph is
.
The orientation is towards up and curve is smooth and continuous.
\The range is
.
(b)
\The domain of the graph is
.
The orientation is towards down and curve is smooth and continuous.
\The range is
.