HELP I DONT WANNA FAIL

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

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Write and solve a real word problem that involves determining distance on a coordinate plane