Answer :
Given function:
[tex]f(x)=5(2-x)[/tex][tex]f(-1)=5(2-(-1))[/tex][tex]\begin{gathered} f(-1)=5(2+1) \\ =5\times3 \\ =15 \end{gathered}[/tex]
Given function:
[tex]f(x)=5(2-x)[/tex][tex]f(-1)=5(2-(-1))[/tex][tex]\begin{gathered} f(-1)=5(2+1) \\ =5\times3 \\ =15 \end{gathered}[/tex]