Intermediate microecon help please!!!!?

Question

Given perfect substitutes with the utility function U(x,y) = 3x+2y, the price of good x is $2 and the price of good y is $1.25 what would be the demand function and how would I draw the demand curve???

Answer 1

While preferences are the conventional foundation of microeconomics, it is often convenient to represent preferences with a utility function and reason indirectly about preferences with utility functions.

Let X be the consumption set, the set of all mutually-exclusive packages the consumer could conceivably consume (such as an indifference curve map without the indifference curves). The consumer's utility function u

In microeconomic models, there are usually a finite set of L commodities, and a consumer may consume an arbitrary amount of each commodity.

In order to simplify calculations, various assumptions have been made of utility functions.