Which of the following is the graph of the quadratic function y = x2 - 4x +4?

Answer:
B. Graph D
Step-by-step explanation:
Start with the vertex formula for each, y = a(x - h)² + k, where (h, k) → (2, 0) is the vertex, plus, -h gives you the OPPOSITE terms of what they really are, and k gives you the EXACT terms of what they really are. So, insert the vertex into the Vertex Equation FIRST, y = (x - 2)². We reason why there is no k is because it is represented by 0. So, squaring this monomial will give us x² - 4x + 4. Ta Da!
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Answer:
answer is B
Step-by-step explanation:
cause the other person answered it lol