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natali 33 [55]
3 years ago
5

What is the vertex is of the graph of y=-2x^2+8x+9

Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0
Hi, 
y=-2x^2+8x+9\\
=-2(x^2-4x+4-4)+9\\
=-2(x-2)^2+8+9\\
=-2(x-2)^2+17\\


Vertex is (2,17)

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