Consumers equilibrium is the amount of goods the consumer can buy in the market given his/her current level of income. There are two conditions for consumers equilibrium:
The first is that the budget line should tangent to the indifference curve or marginal rate of substitution of good X for Good Y (MRSxy) must be equal to the price ratio . i.e MRSxy= Px/Py
The indifference curve should be convex to the origin at the point of tangency.