Please check my answers. Also, can I see some graphs of y-axis symmetry, orgin of symmetry, or neither?
Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither.
f(x) = 4x^2 - x^3
-My answer: orgin of symmetry
f(x) = 5 - x^4
-My answer: orgin of symmetry
f(x) = x^3 - 2x
-my answer: neither