Problema Solution
You provide a manager with a quadratic equation that models the expected number of ticet sales for each day x. (x=1 is the day tickets go on sale)
Tickets = -0.2x^2 + 12x + 11
Question:
What is the point of the vertex? How many solutions are there to the above equation? How do you know? What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does it not make sense?
Answer provided by our tutors
The point of the vertex is (30, 191).
I think this equation has 2 solutions.
The first, using root formula of quadratic function. You can refer at:https://en.wikipedia.org/wiki/Quadratic_function
The second, you can use graph . Cut points between graph of function
f(x)= and x-axis is the root of equation
With method using graph, we cant make sense.Because if you use this method, you cant find the root of equation exactly .