Question

Tentukan persamaan parabola dengan puncak (2,-5) dan titik fokus (2,-1)

Answer 1

Puncak (a,b)= (2, - 5)
F(a , b+p) = (2, -1)
a = 2
b = - 5
b+p = -1
-5 + p = - 1
p = 4

(x-a)² = 4p (y-b)
(x- 2)² = 4(4)(y + 5)
(x-2)² = 16(y-5)