Let P ( x )=x 3 +2 x 2x2 When factored, P ( x )= ( x +1 ) ( x+2 )( x1 ) (a) State the domain. (b) Which sketch illustrates the end behavior of the polynomial function? A. B. vvvv C. vvvv D. vvvv (c) State the y-intercept: (d) State the real zeros: (e) State which graph below is the graph of P(x). GRAPH A. GRAPH B GRAPH C GRAPH D. vvvv