Jawab soal diatas….​

f(x) = 2x³-3x

domain = {-1,0,1}

masukkan domain ke fungsinya supaya dapat nilai range:

f(-1) = 2•(-1)³-3•(-1)

f(-1) = 2•(-1)+3

f(-1) = 1

f(0) = 2•0³-3•0

f(0) = 0

f(1) = 2•(1)³-3•(1)

f(1) = 2-3

f(1) = -1

jadi rangenya adalah {1,0,-1)