Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = -x2 + x + 8
A. f(x) = -(x + 
)2+ 
vertex: 
B. f(x) = -(x - 1)2 + 8
vertex: (1, 8)
C. f(x) = -(x + 1)2 + 6
vertex: (-1, 6)
D. f(x) = -(x - 
)2 + 
vertex: 
Answer: D
Mathematics
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