Question

1.suatu fungsi didefinisikan f(x)=7-1/2x dengan x ϵ {-2,0,2,4}
daerah fungsi hasil tersebut adalah...

Answer 1

F(x)=7-1/2x
f(-2)=7-1/2(-2)
     = 7+1 = 8
f(0)=7-1/2(0)
     = 7
f(2) = 7-1/2(2)
      =6
f(4)= 7-1/2(4)
    =5
daerah fungsi = {8,7,6,5}