How you define the budget line? What is the mathematical representation of the budget line? How to calculate the slope of the budget line and what it means? How does changes in income affect the budget line? Show this on a graph. How do changes in Prices affect the budget line? Show this on a graph. What is an indifference curve? What is an indifference map? What are the characteristics of an indifference curve? What does MRS means and how we interpret it? How do we identify the utility maximisation point? Can we use consumer equilibrium to derive the demand curve for a product