Explanation:

IC are convex to the origin because they follow the law of DMRSxy (Diminishing marginal rate of substitution).an indifference curve connects points on a graph representing different quantities of two goods, points between which a consumer is indifferent.

That is, any combinations of two products indicated by the curve will provide the consumer with equal levels of utility, and the consumer has no preference for one combination or bundle of goods over a different combination on the same curve. One can also refer to each point on the indifference curve as rendering the same level of utility (satisfaction) for the consumer.