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Mathematics, 18.05.2021 17:00 amp46

Which of the following functions opens downward?
y = –2x2 + x + 3
B
f(x) = 0.5x2 – X – 1

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Which of the following functions opens downward?
y = –2x2 + x + 3
B
f(x) = 0.5x2...

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