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28-09-2016
Mathematics

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28-09-2016

Axis of symmetry formula is -b/2a.
-4/2(2)=-1
So, x=-1.
Find vertex by plugging in the x that we just found into equation.
y=2(-1)^2-4(-1)-3
y=2-4-3
y=-5
The third one down is the answer.

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