Based on the information given the amount of the tax paid by the consumer is rev:$5.
Shift of demand curve tend to occur due to some factors or when their in change in price of goods and service or change in consumer preference or want.
Since demand curve shift from D1 to D2 this can lead increase in demand which inturn can as well affect other variables.
Based on the graph the amount of the tax paid by the consumer is $5 which is the point in which the demand curve intersect.
Inconclusion the amount of the tax paid by the consumer is rev:$5.
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