$\"\"$

The parametric equations are $\"\"$ and $\"\"$ .

Graph:

Graph the parametric equations $\"\"$ and $\"\"$ .

$\"\"$ .

$\"\"$

Find the rectangular equation.

The parametric equations are $\"\"$ and $\"\"$ .

Consider $\"\"$ .

Properties of trigonometric function: $\"\"$

$\"\"$ .

Consider $\"\"$

$\"\"$

Substitute $\"\"$ and $\"\"$ in above equation.

$\"\"$ .

The rectangular equation is $\"\"$ .

$\"\"$

Graph the parametric equations $\"\"$ and $\"\"$ .

$\"\"$ .

The rectangular equation is $\"\"$ .