directriz

Foco

Puntos de la parábola

F = (1.92, -1.56)
A = (0.82, -4.4)
B = (8.64, -0.26)
a = Line(A, B)
P_1 = Point(a)
b = OrthogonalLine(P_1, a)
c = Line(F, P_1)
d = LineBisector(F, P_1)
P = Intersect(b, d)
C = Intersect(c, d)
lugar1 = Locus(P, P_1)