Attainable combinations of X and Y are drawn on the assumption that Px and Py are ........

Attainable combinations of X and Y are drawn on the assumption that Px and Py are

Constant

Variable

Change in the same ratio

Equal to each other

- Option 1: Constant

- Px and Py remain constant.

- This allows for a clear depiction of attainable combinations of X and Y.

- Correct Answer:

- Option 2: Variable

- Px and Py can change.

- This would make the combination of X and Y indeterminate.

- Option 3: Change in the same ratio

- Both Px and Py change in tandem.

- This assumes a proportional relationship.

- Option 4: Equal to each other

- Px equals Py.

- This creates symmetrical combinations but isn't a general assumption.

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