How do you graph $r= -5$ ?

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Answer 1 · 2016-02-18T15:20:26

Draw the circle with center at r = 0 and radius 5, starting from the polar ( $-$ 5, 0) in the $theta$ increasing anticlockwise sense and complete it.

Both r = $-$ 5 and r = + 5 represent the same circle. It is better to keep r non-negative and read $theta$ befittigly.

How do you graph r= -5r= -5?