(Solved): Convert the following equation to Cartesian coordinates. Describe the resulting curve. \[ r=-6 \cos ...

Convert the following equation to Cartesian coordinates. Describe the resulting curve. \[ r=-6 \cos \theta+6 \sin \theta \] Write the Cartesian equation. Describe the curve. Select the correct choice below and, if necessary, fill in any answer box(es) to complete your choice. A. The curve is a circle centered at the point with radius (Type exact answers, using radicals as needed.) B. The curve is a vertical line with \( x \)-intercept at the point (Type exact answers, using radicals as needed.) C. The curve is a cardioid with symmetry about the \( y \)-axis. D. The curve is a cardioid with symmetry about the \( x \)-axis. E. The curve is a horizontal line with \( y \)-intercept at the point (Type exact answers, using radicals as needed.)