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Find the maximum value of the quadratic y = -3x^2 + 4x - 7.

 Jun 30, 2020
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to find the maximum value, you have to find the vertex of the quadratic

 

the formula for the vertex is: \((-\dfrac{b}{2a},f(-\dfrac{b}{2a}))\)

 

in this case, b=4 and a=-3

 

so, the vertex is \(\boxed{(\dfrac{2}{3},-\dfrac{17}{3})}\)

 Jun 30, 2020

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