diketahui rumus f (x) =8x+5.nilai f(-1/2)=

f (x) =8x+5
f(-1/2)= 8 (-1/2) + 5
= -4 + 5
= 1

Mapel = Matematika
Bab = Relasi dan Fungsi

f(x) = 8x + 5
f(-½) = 8 .(-½) + 5
f(-½) = -4 + 5
f(-½) = 1

Semoga membantu :)