How do you write the polar equation $r=-3$ in rectangular form?

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Answer 1 · 2017-10-31T15:50:27

$x^2+y^2=9$

for polr/rectangluar conversion

$r^2=x^2+y^2$

$:.r=sqrt(x^2+y^2$

$r=-3rarrsqrt(x^2+y^2)=-3$

$x^2+y^2=9$

How do you write the polar equation r=-3r=-3 in rectangular form?