At the Given Point, Find the Slope of the Curve $5 x ^ { 2 } y - \pi \cos y = 6 \pi$

At the given point, find the slope of the curve, the line that is tangent to the curve, or the line that is normal to the curve,
as requested.
- $5 x ^ { 2 } y - \pi \cos y = 6 \pi$ , normal at $( 1 , \pi )$

A) $y = \frac { 1 } { 2 \pi } x - \frac { 1 } { 2 \pi } + \pi$
B) $y = \frac { 1 } { \pi } x - \frac { 1 } { \pi } + \pi$
C) $y = - 2 \pi x + 3 \pi$
D) $y = - \frac { 1 } { \pi } x + \frac { 1 } { \pi } + \pi$