In each graph below, assume all the important features/characteristics of the graph are shown. (a) Which of the following could be a formula for this polynomial? Assume a > 0. P(x) O p(x) = -x2(x + a) O p(x) = x2( x - a) O p(x) = -x2(x - a) O p(x ) = x2 ( x + a ) O p(x) = x3(x - a) Op(x) = -x3( x - a) (b) Which of the following could be a formula for this rational function? Assume b > 0, and c > 0 T(x) O r ( x ) = _ +c x - b O r( x ) = - 1 x - b - + c Or( x ) = 1 - - C x - b Or(x ) = 1 x2 + b Or(x) = 1 - + C x 2 + b