(a) The market for Good X consists of three consumers. The consumers' demand functions are shown below. No consumer will consume X below a 0 quantity

• (Demand Function Consumer A) Qd = 180 - 2P
• (Demand Function Consumer B) Qd = 150 - 3P
• (Demand Function Consumer C) Qd = 120 - 2P

This means the market demand for good X at $30 is......... units and at $50 its is............

units.

b) Suppose the price of Good Y falls by 10% and the market demand for Good X rises by 20 units at all prices. This means that the two goods are..........

(It's either complements or substitutes) - not sure

(c) A demand curve will slope downward if it is an inferior good and theincome effectis........

(answer is either - less than, greater than, thesubstitution effect.)