suatu fungsi f:9-->2+x dengan D={-1,0,1,2,3,4} tentukan a.daerah hasil fungsi f(9) b.bayangan f(-3),f(-6)

a.
f(g) = 2 + x
f(-1) = 1
f(0) = 2
f(1) = 3
f(2) = 4
f(3) = 5
f(4) = 6
daerah hasil = {1,2,3,4,5,6}

b. bayangan
f(-3) = 2 + (-3) = -1
f(-6) = 2 + (-6) = -4