Question

Tolong bantu jawab disertai caranya yaa teman-teman

Answer 1

(xp, yp) = (1, -4) dan (x, y) = (4, 5)
y = a(x - xp)^2 + yp
5 = a(4 - 1)^2 + (-4)
5 + 4 = a. (3)^2
9 = 9a
1 = a

y = a(x - xp)^2 + yp
y = 1(x - 1)^2 + (-4)
y = x^2 - 2x + 1 - 4
y = x^2 - 2x - 3