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What is the maximum value of y=-x^2-x+6 ?

What is the maximum value of y=-x^2-x+6 ?
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What is the maximum value of y=-x^2-x+6 ?

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User Triumphant
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Answer:


{ \tt{y = - {x}^(2) - x + 6 }} \\ { \tt{ (dy)/(dx) = - 2x - 1}} \\ f {}^(') (x) = - 2x - 1 \\ f {}^(')(1) = - 2 - 1 \\ = - 3

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User Yngve
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