Find the Maximum Value of the Profit Function (a Quadratic Function)

The profit function for a store is P(x)=-x^2+980x-3000. The maximum value of this quadratic function is located at the vertex of the parabola. The x-value of the vertex is found using the formula x=-b/(2a). Then the y-value is found by substituting the x-value of the vertex into P(x).

Timestamps:
0:00 Introduction
1:30 Find x Value of Vertex
2:20 Find Max Profit