Suppose that the estimated demand function for avocados is given as follows:

Q = 104 - 40p + 20pt + 0.01Y

where Q is the quantity demanded of avocados (in million pounds per year), p is the price of avocados in dollars, pt is the price of tomatoes in dollars and Y is the per capita income of the consumers.

Show by how muchquantity demanded increasesor by how muchthe demand curve shifts as per capita income , Y, increases by $110 a year