Answer :
[tex]f(-9)=-64[/tex]
Explanation
[tex]f(x)=-(x^2)-4x-19[/tex]Step 1
F(-9)
replace the value of x
[tex]\begin{gathered} f(x)=-(x^2)-4x-19 \\ f(-9)=-((-9)^2)-(4\cdot-9)-19 \\ f(-9)=-(81)-(-36)-19 \\ f(-9)=-81+36-19 \\ f(-9)=-81+36-19 \\ f(-9)=-64 \end{gathered}[/tex]I hope this helps you