Answer:
9
Step-by-step explanation:
f(x)=½(8-2x)
Let x = -5
f(-5)=½(8-2* (-5))
=½(8+10)
=½(18)
=9
[tex]\\ \tt\bull\rightarrowtail f(x)=1/2(8-2x)[/tex]
[tex]\\ \tt\bull\rightarrowtail f(-5)[/tex]
[tex]\\ \tt\bull\rightarrowtail 1/2(8-2(-5))[/tex]
[tex]\\ \tt\bull\rightarrowtail 1/2(8+10)[/tex]
[tex]\\ \tt\bull\rightarrowtail 1/2(18)[/tex]
[tex]\\ \tt\bull\rightarrowtail 9[/tex]