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28-05-2018
Mathematics

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30-05-2018

Axist of symmetry: x= -0.5
Vertex: (-0.5, -0.5)
The formula for the function:

[tex]f(x)=-2(x+0.5)^2-0.5=-2(x^2+x+0.25)-0.5\\\\=-2x^2-2x-0.5-0.5=-2x^2-2x-1[/tex]

Answer: D.

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