Question

What is the vertex of `y=x^2-4x+18`?

Answer 1

Vertex (2, 14)

Explanation:

x-coordinate of vertex:
`x = -b/(2a) = 4/2 = 2`
y-coordinate of vertex:
y(2) = 4 - 8 + 18 = 14
Vertex (2, 14)