A polynomial function has a root of -7 with multiplicity 2a root of -1 with multiplicity 1a roof of 2 with multiplicity 4, and a root of 4 with multiplicity If the function has a positive leading coefficient and is of even degree, which statement about the graph is true? The graph of the function is positive on (2, 4) . The graph of the function is negative on (4, w) The graph of the function is positive on (- infty,-7) The graph of the function is negative on (- 7, - 1)