Respuesta :

Answer:

Sub, Compliments

Explanation:

The indifference curve should be drawn in a straight line when the two goods i.e. X and Y are perfect substitutes for each other while on the other hand when the  indifference curve should be drawn in a right triangle when the two goods i.e. X and Y are perfect complements

Therefore as per the given statement, the first line represent the substitutes and the other one represents the compliment

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