$\"\"$

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

Graph:

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

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Find the rectangular equation.

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

Consider $\"\"$ .

Take square of each side.

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Consider $\"\"$ .

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Trigonometric identity: $\"\"$ .

Substitute $\"\"$ and $\"\"$ .

$\"\"$

The rectangular equation is $\"\"$ .

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

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The rectangular equation is $\"\"$ .