Question: Suppose that an indifference curve for two goods, X and Y, has the equation xy =400. (a) If 25 units of X are purchased, how

Suppose that an indifference curve for two goods, X and Y, has the equation xy =400.
(a) If 25 units of X are purchased, how many units of Y must be purchased to remain on this indifference curve?
(b) Graph this indifference curve and confirm your results in part (a).

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