# How do you evaluate the function f(x) = -|x+4|+x^2 for f(-9)?

$f \left(- 9\right) = 76$
Substitute $- 9$ into the equation everywhere there is an $x$.
$f \left(- 9\right) = - \left\mid - 9 + 4 \right\mid + {\left(- 9\right)}^{2}$
$= - \left\mid - 5 \right\mid + 81$
$= - 5 + 81$
$= 76$