Problem - For the function f(x) = Ax2 + Bx + D, determine the value of c guaranteed by the Mean Value Theorem in interval [x1, x2].
Set these expressions equal to each other and solve for c.
In your own words in a complete sentences, address the following question: For any quadratic function on any interval, at what point in that interval is the tangent line parallel to the secant line through the endpoints of the graph?