The demand function for apples is Qdapples = 17 - 15Papples + 3Pbananas + 20M where M is consumer income. If the price of bananas increases by $1, holding everything else constant, what happens to the demand for apples? Group of answer choices The demand curve shifts to the right. Not enough information to answer the question. Downward movement along the demand curve. The demand curve shifts to the left. Upward movement along the demand curve