Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = 7x2 - 14x + 2
A. f(x) = 7(x + 2)2 + 58
vertex: (-2, 58)
B. f(x) = 7(x + 1)2 + 23
vertex: (-1, 23)
C. f(x) = 7(x - 1)2 - 5
vertex: (1, -5)
D. f(x) = 7(x - 2)2 + 16
vertex: (2, 16)
Answer: C
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A. 
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+ 10
B. 
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C. 
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D. 8
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