The maximum value of $y = 6 x - x^{2} - 5$ is

5

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4

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10

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7

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Solution

The correct option is B $4$
Maximum value of $y$
$= \frac{4 a c - b^{2}}{4 a}$
$= \frac{4 (- 1) (- 5) - 6^{2}}{- 4} = 4$

Suggest Corrections

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