Find a polar equation for the circle.
-$$x ^ { 2 } + ( y + 3 ) ^ { 2 } = 9$$
A) $r = 3 \cos \theta$
B) $r = 3 \sin \theta$
C) $\mathrm { r } = - 6 \cos \theta$
D) $r = - 6 \sin \theta$

Question

Quizplus · Accepted Answer

The given equation is a circle centered at (0, -3) with radius 3. In polar coordinates, this translates to $r = -6 \sin \theta$, as the center is along the negative y-axis.

Find a Polar Equation for the Circle x2+(y+3)2=9x ^ { 2 } + ( y + 3 ) ^ { 2 } = 9x2+(y+3)2=9

Find a Polar Equation for the Circle $x ^ { 2 } + ( y + 3 ) ^ { 2 } = 9$