Question

Find the vertex of the parabola x – 4y^2 + 16y – 19 = 0.

Answer 1

vertex (h, k)=(2, 3)
h=-(b/2a)=16/8=2
k=f(2)=3

Answer 2

This parabola opens to the right, not up so its vertex is (3,2) not (2,3)