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

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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a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24