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21-04-2017
Mathematics

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if the input value is negative, is the output value of f(z)=-4z+12 always positive or always negative?

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BackPacker99 BackPacker99

21-04-2017

If the input value is negative, the output value is always positive. We know this because the negative sign before the 4z will always reverse the negativity of the number that is plugged in.

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