Answer:
The answer is
[tex]f( - 4) = - 56[/tex]
Step-by-step explanation:
[tex]f(x) = - 3 {x}^{2} - 8 \\ [/tex]
To find f(-4) , substitute the value of x that's - 4 into f(x). That is for every x in f(x) , replace it with - 4
We have
[tex]f( - 4) = - 3 ({ - 4})^{2} - 8 \\ = - 3(16) - 8 \\ = - 48 - 8 \: \: \: \: \: [/tex]
We have the final answer as
[tex]f( - 4) = - 56[/tex]
Hope this helps you
