For each set of Polar coordinates $(r,\theta )$, match the equivalent Cartesian coordinates $(x,y)$.
Don't use a calculator.

1. $( -6 , \frac{5 \pi}{6} )$
2. $( 2 , \frac{4 \pi}{3} )$
3. $( -6 , \frac{11 \pi}{4} )$
4. $( -3 , \frac{8 \pi}{3} )$
5. $( -6 , \frac{\pi}{4} )$
6. $( -6 , \frac{7 \pi}{6} )$

A. $( 3 \sqrt{3} , 3 )$
B. $( -3 \sqrt{2}, -3 \sqrt{2} )$
C. $( 1.5 , -1.5 \sqrt{3})$
D. $( -1 , -1 \sqrt{3})$
E. $( 3 \sqrt{2}, -3 \sqrt{2} )$
F. $( 3 \sqrt{3} , -3 )$