Need step by step explanation for this,
Thanks

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

Which choice represents the sample space ,s for this event

Solve 2x+y=3 x+y=5 in substitution method