Bonjour,
f(-1) = 2(-1)²-3 = -1
f(-1/2) = 2(-1/2)²-3 = -5/2
f(0) = 2(0)²-3 = -3
f(1/2) = 2(1/2)²-3 = -5/2
f(1) = 2(1)²-3 = -1
f(3/2) = 2(3/2)²-3 = 3/2
f(2) = 2(2)²-3 = 5
