economists use model utility maximization explain how consumers make decisions under varying

Economists use the model of Utility Maximization to explain how consumers make decisions under varying circumstances.  Inherent to this is an understanding that the value of a good to a person is a function of individual preferences and that in general this is independent of the price of the good and income a person has.  Use the indifference model of Utility Maximization to explain how this often confusing segmentation of these concepts is clearly reflected in the analysis.  In your answer, show how a change in Value would be exhibited versus a change in Price or income.