Final answer:
The equation derived from roots and multiplicity is a polynomial function equation (option B).
Step-by-step explanation:
The equation derived from roots and multiplicity is a polynomial function equation (option B). When we have the roots and their multiplicities, we can write the equation in factored form using these roots.
For example, if the roots are 2, 2, and 5, with multiplicities 1, 1, and 2 respectively, the polynomial function equation would be (x-2)(x-2)(x-5)(x-5). This equation represents a polynomial function.