(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 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 Oscillating and curve is discontinuous at
.
The range is
.
(c)
\The parametric equations are
and
.
Graph:
\Graph the parametric equations
and
.

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

Observe the graph :
\The domain of the graph is
.
The orientation is Up and curve is smooth and continuous.
\The range is
.
Observe the set of graphs of parametric equations:
\The parametric equations from (a)-(d) are similar and their rectangular equation is
.
They differ in orientation and some are domain restricted.
\The parametric equations from (a)-(d) are similar and their rectangular equation is
.
They differ in orientation and some are domain restricted.
\(a)
\The domain of the graph is
.
The orientation is Up and curve is smooth and continuous.
\The range is
.
(b)
\The domain of the graph is
.
The orientation is Oscillating and curve is discontinuous at
.
The range is
.
(c)
\The domain of the graph is
.
The orientation is Down and curve is smooth and continuous.
\The range is
.
(d)
\The domain of the graph is
.
The orientation is Up and curve is smooth and continuous.
\The range is
.