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  • 08-12-2022
  • Mathematics
contestada

Which of the following equations has a maximum at (9,7)?
A.
y = -x2 − 14x − 58
B.
y = -x2 − 18x − 88
C.
y = -x2 + 14x − 40
D.
y = -x2 + 18x − 74

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