Respuesta :
Step-by-step explanation:
Below is an attachment containing the solution
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Answer:
<img src="https://tex.z-dn.net/?f=f%28x%29%3D-2%28x-560%29%5E2%2B204%2C800" alt="f(x)=-2(x-560)^2+204,800"/>
Step-by-step explanation:
Let
f(x) ----> the profit earned
x ---> is the number of orders fulfilled
we know that
The equation of a quadratic equation in vertex form is equal to
where
a is the leading coefficient of the quadratic equation
(h,k) is the vertex
Remember that
The x-intercepts or roots are the values of x when the value of the function is equal to zero
In this problem
The x-intercepts are
x=240 and x=880
The x-coordinate of the vertex (h) is the midpoint of the roots
so
The y-coordinate of the vertex (k) is the maximum profit earned
----> is given
so
The vertex is the point (560,204,800)
substitute in the quadratic equation
Find the value of a
we have the ordered pairs (240,0) and (880,0) (the x-intercepts)
take the point (240,0) and substitute the value of x and the value of y in the quadratic equation
solve for a
therefore
The function that models the profits of the company is given by
----> equation in verte