Question 488918: N(x) = -0.4x^2 +8x + 12 IS the formula. What day will the ticket sales peak on? and how many tickets will be sold on that day. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! N(x) = -0.4x^2 +8x + 12 IS the formula. What day will the ticket sales peak on? and how many tickets will be sold on that day.
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a = -0.4 ; b = 8 ; c = 12
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Max tickets sales occurs when x = -b/(2a) = -8/(2*-0.4) = 10
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Max ticket sales = N(10) = -0.4^10^2 + 8*10 +12
= -40 + 80 + 12
= 52
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Cheers,
Stan H.
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