If good x and good y are perfect substitutes (1 unit of x can be substituted by 1 unit of y) and good x is more expensive, the consumer's Engel curve for good y is

Question

If good x and good y are perfect substitutes (1 unit of x can be substituted by 1 unit of y) and good x is more expensive, the consumer's Engel curve for good y is

Answer

a horizontal function.

Answer

a vertical function.

Answer

a linear function with a negative slope.

Answer

a ray from the origin with a positive slope.

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If good x and good y are perfect substitutes (1 unit of x can be substituted by ...

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