ayannamartin21 ayannamartin21

25-04-2018
Mathematics

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Consider the quadratic function: f(x) = x2 – 8x – 9 Vertex: (-b/2a, f(-b/2a)) What is the vertex of the function?

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peter60 peter60

25-04-2018

X = -b/2a = 8/2 = 4

y = 16 -8*4 -9 = 16 - 32 -9 = -25

the vertex is (4,-25)

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sadiemontoya sadiemontoya

02-05-2018

The answer is 4 & -25 on e2020

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