Find the Slope of the Normal Line to the Curve $y = 4 x ^ { 2 } - 5 x$

Multiple Choice

Find the slope of the normal line to the curve $y = 4 x ^ { 2 } - 5 x$ at the point (1, $- 1 )$ .

A) 8

B) $- 5$
C) 3
D) 1
E) $- \frac { 1 } { 3 }$
F) $\frac { 1 } { 5 }$
G) $- \frac { 1 } { 8 }$
H) 0