Two: Solution (Algebraic)
Find the value of x for which M is a minimum. Also find that minimum
Recognize that M is a quadratic function of x and that the graph of
between x and M is a parabola. The minimum will therefore occur
at the vertex.
The x coordinate of the vertex is given by
M has a minimum value of 52 when x is 8.
you graph the curve M vs. x to confirm the answer? (Graphing