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29-05-2016
Mathematics

Answered

where is the vertex of the graph of y = -x^2+4x+5 located?

(2.9)

(-2, -7)

(2, 5)

(-2, 1)

Verified Answer :

30-05-2016

Hello,

y=-x²+4x+5=-(x²-4x+4)+5+4=-(x-2)²+9

Answer A (2,9)

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