Question

What is the answer to this plz help

Answer 1

f(x) = x^2 - 4x + 5

Let's put this into vertex form by completing the square:

f(x) = x^2 - 4x + 4 - 4 + 5 = (x-2)^2 + 1

The vertex can be identified directly from this equation; it is (2, 1).