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Where is the vertex of the graph of y = -x^2+4x+5 located? (2.9) (-2, -7) (2, 5) (-2, 1)

Where is the vertex of the graph of y = -x^2+4x+5 located? (2.9) (-2, -7) (2, 5) (-2, 1)
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1 vote
Where is the vertex of the graph of y = -x^2+4x+5 located?

(2.9)
(-2, -7)
(2, 5)
(-2, 1)

User Don Tomato
by
8.2k points

1 Answer

6 votes
Hello,

y=-x²+4x+5=-(x²-4x+4)+5+4=-(x-2)²+9

Answer A (2,9)
User Noqrax
by
7.7k points
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