The graph of
\[r = -2 \cos \theta + 6 \sin \theta\]is a circle.  Find the area of the circle.
Question:
The graph of
\[r = -2 \cos \theta + 6 \sin \theta\]is a circle.  Find the area of the circle.
Answer:
Let's think step by step.

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10 \pi
The graph of
\[r = -2 \cos \theta + 6 \sin \theta\]is a circle.  Find the area of the circle.
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