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document.write( "Hi,
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document.write( "p=-t^(2)+100t+25 where t the number of days after the outbreak
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document.write( "What is the maximum number of people sick during the outbreak?
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document.write( "Using the vertex form of a parabola,
where(h,k) is the vertex
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document.write( "p=-t^(2)+100t+25
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document.write( "p=-(t^(2)-100t)+25
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document.write( "p=-[(t-50)^2 - 2500] + 25
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document.write( "p = -(t-50)^2 + 2525 Vertex is Pt(50,2525)
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document.write( "|Parabola opening downward : a = -1 < 0
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document.write( " 2525 is the maximum number of people sick during the outbreak
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document.write( "(which occurs 50 days after the outbreak)
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