Effects Of Change In Demand And Supply On Market Equilibrium

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.

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.

What effect will a decrease in demand and an increase in supply have on equilibrium price?