V Leila is walking. D (t), given below, is her distance in kilometers from Tomsville after t hours of walking. D (1) =13.5-5t Complete the following statements. Let D"be the inverse function of D. Take x to be an output of the function D. log Olog That is, x = D (1) and t = D (x). No (a) Which statement best describes D (x)? 0=0 solution O The reciprocal of her distance from Tomsville (in kilometers) after walking x hours. X 5 ? O The amount of time she has walked (in hours) when she is x kilometers from Tomsville. O Her distance from Tomsville (in kilometers) after she has walked x hours . O The ratio of the amount of time she has walked (in hours) to her distance from Tomsville (in kilometers), x. ( b ) D ( x ) = 0 ( C ) D (7.5 ) = 0