The Graph O $$r = a \theta$$ In Polar Coordinates Is an Example of the Spiral of Is

The graph o $$r = a \theta$$ in polar coordinates is an example of the spiral of Archimedes. With your calculator set to radian
mode, use the given value of a and interval of  to graph the spiral in the window specified.
- $a = 2 , - 3 \pi \leq \theta \leq 3 \pi , [ - 20,20 ]$ by $[ - 20,20 ]$

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