For which x is f(x)=3

Consider the function represented by the table

X F(x)
-7. -3
-3. 5
2. -4
4. -8

Plz heeeeeeelp plz give me the answer

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 activity, is appreciated