SOLUTION: The number of tickets sole each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.5x^2+12x+11, where x is the number of days since the concert was first annou

Algebra ->  Graphs -> SOLUTION: The number of tickets sole each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.5x^2+12x+11, where x is the number of days since the concert was first annou      Log On


   



Question 459923: The number of tickets sole each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.5x^2+12x+11, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
N(x)=-0.5x^2+12x+11
It will peak at the vertex. We know this because of the negative coefficient associated with the x^2 term -- that is, the parabola opens downward.
x = -b/(2a)
x = -12/(2(-0.5))
x = -12/(-1)
x = 12
.
ans: it will peak 12 days after concert was first announced