Please help!! The question is in the image

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

Which one is the correct answer, and why?