Find the Slope of the Polar Curve at the Indicated $$r = 6 ( 1 + \cos \theta ) , \theta = \frac { \pi } { 4 }$$

Multiple Choice

Find the slope of the polar curve at the indicated point.
- $$r = 6 ( 1 + \cos \theta ) , \theta = \frac { \pi } { 4 }$$

A) $1 - \sqrt { 2 }$
B) $4 \sqrt { 2 }$
C) $\frac { \sqrt { 3 } } { 3 }$
D) $- 2$