Find the Slope of the Polar Curve at the Indicated $$r = 5 \cos \theta + 8 \sin \theta , \theta = 0$$

Multiple Choice

Find the slope of the polar curve at the indicated point.
- $$r = 5 \cos \theta + 8 \sin \theta , \theta = 0$$

A) $- \frac { 5 } { 8 }$
B) $\frac { 5 } { 8 }$
C) $- \frac { 8 } { 5 }$
D) $\frac { 8 } { 5 }$