Write a function rule for the table

Ineed if you could explain and give me the answer you! this needs done

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =