The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.
-$r = - 4 \cos \theta$
A) $\mathrm { C } ( - 2,0 )$, radius $= 2$
B) $\mathrm { C } ( - 4,0 )$, radius $= 4$
C) $\left( 2 , \frac { \pi } { 2 } \right)$, radius $= 2$
D) $\left( 4 , \frac { \pi } { 2 } \right)$, radius $= 4$

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The Answer of The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.
-$r = - 4 \cos \theta$
A) $\mathrm { C } ( - 2,0 )$, radius $= 2$
B) $\mathrm { C } ( - 4,0 )$, radius $= 4$
C) $\left( 2 , \frac { \pi } { 2 } \right)$, radius $= 2$
D) $\left( 4 , \frac { \pi } { 2 } \right)$, radius $= 4$

The Polar Equation of a Circle Is Given r=−4cos⁡θr = - 4 \cos \thetar=−4cosθ

The Polar Equation of a Circle Is Given $r = - 4 \cos \theta$