The amount of money in Don's savings account may be modeled with the function y=4x^2−12x+100, where x represents the number of months that pass. A. Complete the square to rewrite the expression that defines the function. Explain the steps used to complete the square.
B. Identify the vertex of the function. Explain how you determined the vertex given the form of the expression derived in part A.
C. Explain the meaning of the vertex as related to the given context.