Diketahui suatu fungsi f(x)=2x²-3 dengan domain {-3,-2,-1,0,1,2,3}.Tentukan daerah hasil fungsi tersebut! Please pake cara ya...

f(x) = 2x² -3
f( -3) = 2(-3)² -3 = 2 (9) -3 = 18-3 = 15
f(-2)= 2(-2)² -3 = 2(4)-3= 8-3 = 5
f(-1) = 2(-1)² -3 = 2(1) -3 = 2-3 = -1
f(0) = 2(0)² -3 = -3
f(1)= 2(1)² -3 = 2-3 = -1
f(2)= 2(2)² -3 = 2(4)-3 = 8-3 = 5
f(3)= 2(3)²-3 = 2(9) -3 = 18-3 = 15
daerah hasil = { 15, 5, -1, -3, -1, 5, 15 }

maaf kalau salah ya.