Complete the table for the following function y=(1/3)*

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

How do i do this? i don’t understand

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?