Chapter 9 and 10 past year questions 1. Analyse, using a demand and supply diagram, how a rise in income may affect the market for gold. [6] 2. Analyse, using a demand and supply diagram, the effect of an increase in demand for cars on the market for tyres. [6] 3. Analyse, using a supply and demand diagram, the effect of increasing a sales tax. [6] 4. s Answer Scheme 1. 2. 3.