Will give brainliest! Answer honestly i will know if your writing things randomly

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36