Can someone me with this question

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

Explain how the quotient of powers was used to simplify this expression.

Factor the gcf out of the polynomial 9x^6+6x^4+15x^3