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OpenStudy (anonymous):
find the maximum y-value on the graph of y = f(x) f(x)=-x^2+6x+4 y=13?
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ganeshie8 (ganeshie8):
yep, maximum/minimum value for parabola occurs at vertex. y value of vertex = f(-b/2a)
OpenStudy (anonymous):
awesome!! thank you! :)
ganeshie8 (ganeshie8):
yw :) good work !
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