Which of the following statements must be true about the polynomial function f(x)? If 1+ /13 is a root of f(x), then - 1 - 13 is also a root of f(x),
If 1 + 131 is a root of f(x), then 1 - 131 is also a root of f(x).
If 13 is a root of f(x), then -13 is also a root of f(x).
If -13 + i is a root of f(x), then 13+ i is also a root of f(x).