(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 .