Choose the Equation That Matches the Graph $f(x)=x^{2}-2 x+1$ B) $f(x)=-x^{2}-2 x+1$

Choose the equation that matches the graph.
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A) $f(x) =x^{2}-2 x+1$
B) $f(x) =-x^{2}-2 x+1$
C) $x=y^{2}-2 y+1$
D) $x=y^{2}-2 y-1$