# SOLUTION: I am not sure how to start this to figure out the last day of tickets. Use the quadratic equation to determine the last day that tickets will be sold. Write your answer in terms o

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Question 482033: I am not sure how to start this to figure out the last day of tickets.
Use the quadratic equation to determine the last day that tickets will be sold. Write your answer in terms of the number of days after ticket sales begin. (x=1 is the day tickets go on sale).

Tickets=-0.4x^2+9x+11