Question: the function f is defined by a polynomial?
Answer: The function 𝑓 is defined by a polynomial. Some values of 𝑥 and 𝑓 of 𝑥 are shown in the table. ... For example, if we have the polynomial function 𝑥 squared minus four, this function has a factor of 𝑥 plus two and 𝑥 minus two. Factors lead us to the zeros of a polynomial.