Posted by **sally** on Friday, September 4, 2009 at 7:20pm.

The number of tickets sold each day for an upcoming performance of Handel's messiah is given by N (x) = 0.4x^2 + 11.2x + 12 where x is the number of days since the concert was first announced. when will daily tickets sales peak and how many tickets will be sold that day?

- College Algebra 2 -
**drwls**, Saturday, September 5, 2009 at 1:26am
You must have copied something wrong.

N(x) as you have written it will increase with x. There will be no peak.

Are you sure there isn't supposed to be a minus sign in front of 0.4x^2?

Try making a graph to find the answer, once you have verified the correct equation. I recommend you round off N(x) to the nearest integer.

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