A rightward shift of the demand curve would; appreciate the dollar.
Usually, the demand curve shifts to the right if the determinant causes demand to increase. This means that more of the good or service are demanded even though there's no change in price. When the economy is booming, buyers' incomes will rise. They'll buy more of everything, even though the price hasn't changed.
Now, increases in demand are shown by a shift to the right in the demand curve. This could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.
Now, from the diagram attached, and applying the principle of shift in demand curve above, we can say that a rightward shift of the demand curve would appreciate the dollar.
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