\"\"

\

(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 \"\".