Explain the effect of simultaneous increases in both demand and supply on equilibrium price and quantity. Show on diagram a situation when there is no change in equilibrium price.

Explain the effect to simultaneous 'increase' in demand and supply on equilibrium price. Represent one of the possible effect to a diagram.

Explain the effect of simultaneous 'decrease' in demand and supply on equilibrium quantity. Represent one of the possible effect on a diagram.

Show diagrammatically the effects of increase in demand of a good on its equilibrium price.

Discuss the effect of change in supply on equilibrium price and equilibrium quantity, when demand is perlectly inelastic.

If the supply curve is a vertical straight line, change in demand will not affect equilibrium price.

The individual demand and supply functions of a product are given as: Dx=10-2Px,Sx=20+2Px, where Px stands for price and Dx and Sx respectively stands for quantity demanded and quantity supplied. If there are 4,000 consuers and 1,000 firms in the market, then quantity demanded and supplied at the equilibrium price of rupay 2.

If the supply curve is a horizontal straight line, change in demand will affect equilibrium quantity.