If f(x) = -2\(x\) + 8\(x\) - 4, which of the following is true?

W) \(f\) is not a one to one function

X) The graph of \(f\) opens upward

Y) The graph of \(f\) has no x-intercept

Z) The maximum value of f(x) is -4
W) f!S NOT A ONE TO ONE FUNCTION