tolong dijawab ya pakai jln ok ;)

no 22.
f(x) = 3(-1) - 2 = -5
= 3(0) - 2 = -2
= 3(1 ) - 2 = 1
= 3( 2 ) - 2 = 4
maka daerah hasil { -5 , -2 , 1 , 4 }