(a)
\The parametric equations are and
.
Find the rectangular equation.
\Consider .
Squaring on each side.
\.
Consider .
Trigonometric identity: .
Substitute and
.
The rectangular equation is .
Graph:
\Graph the parametric equations and
.
.
Observe the graph:
\The domain of the graph is .
The orientation is from right to left and curve is smooth and continuous on the interval.
\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 from right to left and curve is smooth and continuous on the interval.
\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 in the interval and it orientation is from right to left.
The parametric equations from (a)-(b) are similar and their rectangular equation is .
The curves are identical in the interval and it orientation is from right to left.
(a)
\The domain of the graph is .
The orientation is from right to left and curve is smooth and continuous on the interval.
\The range is .
(b)
\The domain of the graph is .
The orientation is from right to left and curve is smooth and continuous on the interval.
\The range is .