Respuesta :
I thought I would give a second opinion and say that the answer that was given is correct
f(-6) = 20
f(-1) = 5
f(0) = 2
f(1) = -1
f(6) = -16
f(-6) = 20
f(-1) = 5
f(0) = 2
f(1) = -1
f(6) = -16