$\"\"$

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The polar equation for each graph is either $\"\"$ or $\"\"$ .

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Observe the graph :

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Since the graph is symmetrical about the vertical line $\"\"$ , the equation is $\"\"$ .

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The point on the graph is $\"\"$ and $\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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

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$\"\"$ .

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$\"\"$

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The polar equation of the graph is $\"\"$ .