Posted by **enya** on Sunday, May 3, 2009 at 11:32am.

the number of tickets for an upcoming concert is given by N(x)=-0.5x^2+14x+10 where x is the number of days since the concert was announced. When will the tickets peak and how many tickets will be sold that day?

- math -
**Reiny**, Sunday, May 3, 2009 at 12:04pm
If you are in a Calculus class, then find the derivative, set it equal to zero and solve.

If not, then you will have to complete the square

let me know which method you will need help with.

- math -
**enya**, Sunday, May 3, 2009 at 12:21pm
I am in Algebra Thank you for your help

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