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The vertex of the parabola f(x)= -5x^2+4x+1 is the point (__,__)
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The vertex of the parabola f(x)= -5x^2+4x+1 is the point (__,__)

User Jansen
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The answer would be (.4,1.8) i believe! :) hope this helps 
User Shuvayan Das
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