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Mathematics 10 Online
OpenStudy (aivantettet26):

Which of the following is the function always increasing? f(x) = 3x + 1 f(x) = -2x + 1 f(x) = x^2 - 4x + 7 f(x) = 1 - 4x - x^2

OpenStudy (anonymous):

you need to find for which of the functions y' is always positive

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