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25 February, 17:04

Identify whether each of these functions contains a minimum or a maximum

[Title] Minimum Maximum

f (x) = 7x2-49

f (x) = 2x2-5x+1

f (x) = -12x2+4x-5

f (x) = -3x2+4x-7

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  1. 25 February, 19:50
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    f (x) = 7x2-49 - -> min

    f (x) = 2x2-5x+1 - -> min

    f (x) = -12x2+4x-5 - -> max

    f (x) = -3x2+4x-7 - -> max

    Step-by-step explanation:

    If the coefficient of x² is:

    Positive, it's minimum

    Negative, it's maximum
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