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OpenStudy (anonymous):
P= -2x^2 +8x -5 how do you calculate the max. or min. profit of this equation?
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OpenStudy (anonymous):
max is at the vertex. first coordinate of the vertex is \(-\frac{b}{2a}\) in your case it is at \(-\frac{8}{2\times (-2)}=2\)
OpenStudy (anonymous):
find the second coordinate by replacing x by 2
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