Find an Equation for the Tangent to the Curve at the Given

Find an equation for the tangent to the curve at the given point.
- $y = x ^ { 2 } - x , ( - 4,20 )$

A) $y = - 9 x - 12$
B) $y = - 9 x + 12$
C) $y = - 9 x - 16$
D) $y = - 9 x + 16$