An Application of the Quadratic Formula
Not what you're looking for?
Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. (x=1 is the day tickets go on sale).
Tickets = -0.12 x^2 + 9x +21
1. Does the graph of this equation open up or down? How did you determine this?
2. Describe what happens to the tickets sales as time passes.
3. Use the quadratic equation to determine the last day that tickets will be sold.
Note. Write the answer in terms of the number of days after ticket sales begin.
Purchase this Solution
Solution Summary
We solve a word problem involving the quadratic formula.
Solution Preview
1. The graph of the equation opens down since the quadratic coefficient is negative.
2. The ticket sales increase at first but later ...
Purchase this Solution
Free BrainMass Quizzes
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Probability Quiz
Some questions on probability