Good x: Blue eraser; good y: Red eraser.
what would be the indifference curves
Indifference curves represent the combinations of two goods that provide the same level of satisfaction or utility to an individual. In this case, the indifference curves would show the different combinations of blue erasers (x) and red erasers (y) that the individual considers equally satisfying.
Since the individual considers both blue erasers and red erasers as good, the indifference curves would likely exhibit a downward sloping convex shape. This implies that as the individual increases the amount of one eraser (e.g., blue erasers) in their possession, they would be willing to give up some of the other eraser (e.g., red erasers) to maintain the same level of satisfaction.
The specific shape and slope of the indifference curves would depend on the individual's preferences and utility function, which are subjective and can differ from person to person.