If an object is dropped from a height of 55 feet, the function d =-16t^2+ 55 gives the height of the object after t seconds. Graph this function. Approximately how long does it take the object to reach the ground (d = 0)?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )