Given a function f(x) as;
[tex]f(x)=-2x+3[/tex]We can derive the value of f(-8) by subtituting -8 for x in the function f(x);
the x in the function f(x) will be replace by -8.
[tex]\begin{gathered} f(x)=-2x+3 \\ f(-8)=-2(-8)+3 \\ f(-8)=16+3 \\ f(-8)=19 \end{gathered}[/tex]Therefore, f(-8) = 19
