Answer:
-8
Step-by-step explanation:
f(1)=-3(1)-5=-3-5=-8
[tex]→ \:{ \tt{f(x) = - 3x - 5}}[/tex]
• when x is 1;
[tex]→ \: { \tt{f(1) = - 3(1) - 5}} \\ → \: { \tt{f(1) = - 3 - 5}} \\ \\ → \: { \boxed{ \tt{f(1) = - 8}}}[/tex]