Since AP and BP are equilateral, we can use pythagora's rule to form a linear equation comprised of h and f, the arbitrary values of x and u at point P.

Furthermore, since P lies on the line y = (1/2)x - 2, the relationship between h and f will also be f = (1/2)x - 2.

Hence, solve the two linear equations to get the values of h and f and thus deriving the coordinates of P.